Cricket

Cricket is a bat-and-ball sport contested by two teams, usually of eleven players each. A cricket match is played on a grass field, roughly oval in shape, in the centre of which is a flat strip of ground 22 yards (20.12 m) long, called a cricket pitch. A wicket, usually made of wood, is placed at each end of the pitch.

The bowler, a player from the fielding team, bowls a hard, fist-sized cricket ball from the vicinity of one wicket towards the other. The ball usually bounces once before reaching the batsman, a player from the opposing team. In defence of the wicket, the batsman plays the ball with a wooden cricket bat. Meanwhile, the other members of the bowler's team stand in various positions around the field as fielders, players who retrieve the ball in an effort to stop the batsman scoring runs, and if possible to get him or her out. The batsman — if he or she does not get out — may run between the wickets, exchanging ends with a second batsman (the "non-striker"), who has been waiting near the bowler's wicket. Each completed exchange of ends scores one run. Runs are also scored if the batsman hits the ball to the boundary of the playing area. The match is won by the team that scores more runs.

Cricket has been an established team sport for hundreds of years and more than 100 countries are affiliated to the International Cricket Council, cricket's international governing body. The sport's modern form originated in England, and is most popular in the present and former members of the Commonwealth. In many countries including Bangladesh, India, Pakistan, Sri Lanka and the English-speaking countries of the Caribbean, which are collectively known in cricketing parlance as the West Indies, cricket is the most popular sport. In Australia, while other sports are more popular in particular areas, cricket has been described as the "national sport" and has had a role in forming the national identity. It is also a major sport in England, New Zealand, South Africa and Zimbabwe . Many countries also have well-established amateur club competitions, including the Netherlands, Kenya, Nepal and Argentina.

The sport is followed with passion in many different parts of the world. It has even occasionally given rise to diplomatic outrage, notoriously the Basil D'Oliveira affair (which led to the banning of South Africa from sporting events) and the Bodyline Test series in the early 1930s (which led to a temporary deterioration in relations between Australia and the United Kingdom).

Other roles

Captain

The captain's acumen in deciding the strategy is sometimes crucial to the team's success. The captain makes a number of important decisions, including setting fielding positions, alternating the bowlers and taking the "toss". Before the start of play the captains of the opposing teams meet and toss a coin; the winner of the toss decides which team will bat first. This decision, made in consideration of pitch conditions, the weather and the relative bowling and batting abilities of the two sides, can have an enormous impact on the course of play. In One Day Internationals the captain also decides when to make use of some powerplays.

Runners
In the event of a batsman being fit to bat but too injured to run, the umpires and the fielding captain may allow another member of the batting side to be a runner. If possible, the runner must already have batted. The runner's only task is to run between the wickets instead of the injured batsman. The runner is required to wear and carry exactly the same equipment as the incapacitated batsman. It is possible for both batsmen to have runners, but this is extremely rare.

Substitutes
In all forms of cricket, if a player gets injured or becomes ill during a match, a substitute is allowed to field instead of him, but the substitute cannot bowl, bat, act as a captain or wicket-keeper. The substitute leaves the field if the injured player is fit to return.

For a period from July 2005, the ICC experimented with Super Subs in One Day International (ODI) cricket and some other limited-overs competitions. A single full substitution was allowed, and the substituted player was not allowed to return to the game. It was discontinued from March 2006.

Fielding

Fielders assist the bowlers either by taking catches to dismiss a batsman, or by saving runs by intercepting the ball and returning it, possibly running out the batsman. The wicket-keeper is the only fielder permitted to wear gloves. A fielder may stop the ball with any part of his body.

The wicket-keeper is a specialist fielder who stands behind the batsman's wicket. One player from each side usually acts as the team's wicket-keeper throughout the match. His primary job is to gather deliveries that the batsman does not hit, so that the batsmen cannot run byes. He wears special gloves (he is the only fielder allowed to do so), and pads to cover his lower legs. Owing to his position directly behind the striker, the wicket-keeper has a good chance of getting a batsman out caught off a fine edge from the bat; thicker edges are typically handled by the slip fieldsmen. The wicket-keeper is also the only person who can get a batsman out stumped.

Bowling and dismissals

Bowling
A bowler delivers the ball toward the batsmen: during the bowling action the elbow may be held at any angle and may bend further, but may not straighten out. If the elbow straightens illegally then the square-leg umpire may call no-ball. The current laws allow a bowler to straighten his arm 15 degrees or less.

The bowler's primary goal is usually to get the batsman out; the most common modes of dismissal (except run out) are credited to the bowler, who is said to have taken a wicket. Dismissing an accomplished batsman is more difficult than dismissing a non-batsman. The bowler's secondary task is usually to limit the numbers of runs scored. Occasionally the match situation makes it more important to limit runs than take wickets.

There are many types of bowler, and many nuances of bowling techniques. Two categories are pace bowlers, who aim to bowl quicker than the batsman's reaction speed, and spin bowlers who bowl slower deliveries that bounce and curve in unpredictable ways.

Dismissal of a batsman
There are ten ways in which a batsman may be dismissed. Once a batsman is dismissed, he leaves the field to be replaced by another batsman. When the tenth batsmen is out, and only one batsman remains undismissed, the side is "all out" and the innings is over.

Many modes of dismissal require the wicket to be "put down". The wicket is put down if a bail is dislodged from the top of the stumps; or if a stump is struck out of the ground either by the ball or by a fielder using the hand in which the ball is being held. Of the following ten modes of dismissal, the first five are common; Hit wicket is less common while the last four are technicalities that rarely occur. The ten modes are:

1. Caught — When a fielder catches the ball before it bounces and after the batsman has struck it with the bat or it has come into contact with the batsman's glove while it is in contact with the bat handle. The bowler and catcher are both credited with the dismissal. (Law 32)
2. Bowled — When a delivered ball hits the stumps at the batsman's end, and dislodges one or both of the bails. This happens regardless of whether the batsman has edged the ball onto the stumps or not. The bowler is credited with the dismissal. (Law 30)
3. Leg before wicket (lbw) — When a delivered ball strikes the batsman's leg, pad or body, and the umpire judges that the ball would otherwise have struck the stumps. The laws of cricket stipulate certain exceptions. For instance, a delivery pitching outside the line of leg stump should not result in an lbw dismissal, while a delivery hitting the batsman outside the line of the off stump should result in an lbw dismissal only if the batsman makes no attempt to play the ball with the bat. The bowler is credited with the dismissal.
4. Run out — When a fielder, bowler or wicket-keeper removes one or both of the bails with the ball by hitting the stumps whilst a batsman is still running between the two ends. The ball can either hit the stumps directly or the fielder's hand with the ball inside it can be used to dislodge the bails. Such a dismissal is not officially credited to any player, although the identities of the fielder or fielders involved are often noted in brackets on the scorecard.
5. Stumped — When the batsman leaves his crease in playing a delivery, voluntarily or involuntarily, but the ball goes to the wicket-keeper who uses it to remove one or both of the bails through hitting the bail(s) or the wicket before the batsman has remade his ground. The bowler and wicket-keeper are both credited. This generally requires the keeper to be standing within arm's length of the wicket, which is done mainly to spin bowling. (Law 39)
6. Hit wicket — When the batsman knocks the stumps with either the body or the bat, causing one or both of the bails to be dislodged, either in playing a shot or in taking off for the first run. The bowler is credited with the dismissal. (Law 35)
7. Handled the ball — When the batsman deliberately handles the ball without the permission of the fielding team. No player is credited with the dismissal. (Law 33)
8. Hit the ball twice — When the batsman deliberately strikes the ball a second time, except for the sole purpose of guarding his wicket. No player is credited with the dismissal. (Law 34)
9. Obstructing the field — When a batsman deliberately hinders a fielder attempting to field the ball. No player is credited with the dismissal. (Law 37)
10. Timed out — When a new batsman takes more than three minutes to take his position in the field to replace a dismissed batsman. (If the delay is protracted, the umpires may decide that the batting side has forfeited the match). This rule prevents the batting team using up time to unfair advantage. No player is credited with the dismissal. (Law 31)

A batsman may leave the field without being dismissed. If injured or taken ill the batsman may temporarily retire, and be replaced by the next batsman. This is recorded as retired hurt or retired ill. The retiring batsman is not out, and may resume the innings later. An unimpaired batsman may retire, and this is treated as being dismissed retired out; no player is credited with the dismissal.

Batsmen cannot be out bowled, caught, leg before wicket, stumped or hit wicket off a no ball. They cannot be out bowled, caught, leg before wicket, or hit the ball twice off a wide.

Some of these modes of dismissal can occur without the bowler bowling a delivery. The batsman who is not on strike may be run out by the bowler if he leaves his crease before the bowler bowls, and a batsman can be out obstructing the field or retired out at any time. Timed out is, by its nature, a dismissal without a delivery. With all other modes of dismissal, only one batsman can be dismissed per ball bowled.

Match structure

The toss
The two opposing captains toss a coin before the match, and the captain who wins chooses either to bat or bowl first. The captain's decision is usually based on whether the team's bowlers are likely to gain immediate advantage from the pitch and weather conditions (these can vary significantly), or whether it is more likely that the pitch will deteriorate and make batting more difficult later in the game.

Overs
Each innings is divided into overs, each consisting of six consecutive legal deliveries bowled by the same bowler. For the definition of illegal deliveries, see Extras. No bowler may bowl two consecutive overs, so at the end of the over the bowler takes up a fielding position and another player bowls.

Overs are bowled from alternate ends of the pitch; at the end of each over the umpires swap, the umpire at the bowler's end moving to square leg, and the umpire at square leg moving to the new bowler's end. The fielders also usually change positions.

End of an innings
An innings is completed if:

1. Ten out of eleven batsmen are out (dismissed); the team are said to be "all out".
2. The team has only one batsman left who can bat, one or more of the remaining players being unavailable owing to injury, illness or absence; again, the team is said to be "all out".
3. The team batting last reaches the score required to win the match.
4. The predetermined number of overs has been bowled (in a one-day match only, most commonly 50 overs).
5. A captain declares his team's innings closed (this does not apply in one-day limited over matches).

Playing time
Typically, two-innings matches are played over three to five days with at least six hours of cricket played each day. One-innings matches are usually played in one day, and often last six hours or more. There are usually formal intervals on each day for lunch and tea, and brief informal breaks for drinks. There is also a short interval between innings.

The game is usually only played in dry weather; play is also usually stopped if it becomes too dark for the batsmen to be able to see the ball safely. Some one-day games are now played under floodlights but, apart from a few experimental games in Australia, floodlights are not used in longer games. Professional cricket is usually played outdoors. These requirements mean that in England, Australia, New Zealand, South Africa and Zimbabwe the game is usually restricted to the summer. In the West Indies, India, Pakistan, Sri Lanka and Bangladesh games are played in the winter. These countries' hurricane and monsoon seasons coincide with their summer.

Batting
The batsman may play a "shot" or "stroke", attempting to hit the bowled ball with the flat surface of the bat. If the ball brushes the side of the bat it is called an "edge". There is no requirement for the batsman to play a shot, and there is no requirement to run if the ball is struck. The batsman automatically scores runs if he hits the ball to the boundary. Shots are named according to the style of swing and the direction aimed. As part of the team's strategy, the player may bat defensively, blocking the ball downwards, or aggressively, hitting the ball hard to empty spaces in order to score runs.

Batsmen come in to bat in a batting order, decided by the team captain. The first two batsmen - the "openers" - usually face the most hostile bowling, from fresh fast bowlers with a new ball. The top batting positions are usually given to the most competent batsmen in the team, and the non-batsmen typically bat last. The batting order is not agreed beforehand, and if a wicket falls any player who has not batted yet may bat next.

Run scoring
The directions in which a right-handed batsman intends to send the ball when playing various cricketing shots. The diagram for a left-handed batsman is a mirror image of this one.
The directions in which a right-handed batsman intends to send the ball when playing various cricketing shots. The diagram for a left-handed batsman is a mirror image of this one.

To score a run, a striker must run to the opposite end of the pitch, while his non-striking partner runs to his end. To register a run, both runners must touch the ground behind the crease with either their bats or their bodies (the batsmen carry their bats as they run). If the striker hits the ball well enough, the batsmen may double back to score two or more runs. However, no rule requires the batsman to run upon striking the ball. The decision to attempt a run is ideally made by the batsman who has the better view of the ball's position, and this is communicated by calling: "yes", "no" and "wait" are often heard. The batsmen swap ends every time an odd number of runs are scored.

If a fielder knocks the bails off the stumps with the ball while no part of the batsman is grounded behind the popping crease, the batsman nearer the broken wicket is run out. The batsman may ground the bat, provided he or she is holding it.

If the ball reaches the boundary, then runs are automatically scored: six if the ball goes over the boundary without touching the ground, four if it touched the ground. These are scored instead of any runs the batsmen may have already run (unless they have run more, which is unlikely), and they return to the ends at which they started.

Extras
Every run scored by the batsmen contributes to the team's total. A team's total also includes a number of runs which are unaccredited to any batsmen. These runs are known as extras; in Australia they are also called "sundries".

The playing field

The cricket field consists of a large, often circular or oval-shaped, grassy ground. There are no fixed dimensions for the field but its diameter usually varies between 450 feet (137 m) and 500 feet (150 m). The perimeter of the field, known as the boundary, is marked, often with a rope or a painted line.

The pitch
A perspective view of the cricket pitch from the bowler's end. Most of the action takes place in the centre of this ground, on a rectangular clay strip usually with short grass called the pitch. The pitch measures 10 × 66 feet (3.05 × 20.12 m). The longer dimension of the pitch is also a unit of length known as a chain.

At each end of the pitch three upright wooden stakes, called the stumps, are hammered into the ground. Two wooden crosspieces, known as the bails, sit in grooves atop the stumps, linking each to its neighbour. Each set of three stumps and two bails is collectively known as a wicket. One end of the pitch is designated the "batting end" where the batsman stands and the other is designated the "bowling end" where the bowler runs in to bowl.

The area of the field on the side of the line joining the wickets where the batsman holds his bat (the right-hand side for a right-handed batsman, the left for a left-hander) is known as the "off side", the other as the "leg side" or "on side".

Lines drawn or painted on the pitch are known as creases. Creases are used to adjudicate the dismissals of batsmen and to determine whether a delivery is legal.

The nature of the pitch
Pitches vary in consistency, and thus in the amount of bounce, spin, and seam movement available to the bowler. Hard pitches are usually good to bat on because of high but even bounce. Dry pitches tend to deteriorate for batting as cracks often appear, and when this happens spinners can play a major role. Damp pitches, or pitches covered in grass (termed "green" pitches), allow good fast bowlers to extract extra bounce and seam movement. Such pitches tend to offer help to fast bowlers throughout the match, but become better for batting as the game goes on.

Parts of the field
For some limited-over matches, there are two additional field markings. A painted oval is made by drawing a semicircle of 30 yards (27.4 m) radius from the centre of each wicket with respect to the breadth of the pitch and joining them with lines parallel, 30 yards (27.4 m) to the length of the pitch. This line, commonly known as the "circle", divides the field into an infield and outfield. Two circles of radius 15 yards (13.7 m), centred on each wicket and often marked by dots, define the "close-infield". The infield, outfield, and the close-infield are used to enforce fielding restrictions.

Placements of players
Fielding positions in cricket for a right-handed batsman. The named positions are only indicative: the fielders may stand anywhere. The bowler and wicket-keeper are always in roughly the same position, and there are only nine other fielders, so there are always many unprotected areas.
Fielding positions in cricket for a right-handed batsman. The named positions are only indicative: the fielders may stand anywhere. The bowler and wicket-keeper are always in roughly the same position, and there are only nine other fielders, so there are always many unprotected areas.

The batting team always has two batsmen on the field. One batsman, known as the "striker", faces and plays the balls bowled by the bowler. His or her partner stands at the bowling end and is known as the "non-striker".

The fielding team has eleven players on the ground. One of them is the current bowler. The wicket-keeper, who generally acts in that role for the whole innings, stands or crouches behind the wicket at the batting end. The captain of the fielding team spreads his or her remaining nine players — the fielders — around the ground, positioned according to the team's strategy.

Test Cricket

Test cricket is the longest form of the sport of cricket. It has long been considered the ultimate test of playing ability between cricketing nations. It remains the highest-regarded form of the game, although the comparatively new One Day International and Twenty20 formats are now more popular amongst some audiences. The name "Test" is thought to arise from the idea that the matches are a "test of strength and competency" between the sides involved. It seems to have been used first to describe an English team that toured Australia in 1861-62, although those matches are not considered Test matches today. The first ever official Test match commenced on the 15th of March 1877, contested by England and Australia at Melbourne Cricket Ground, where the Australians won by 45 runs. England won the second ever match (also at the MCG) by 4 wickets, thus drawing the series 1-1. This was not the first ever international cricket match however, which was played between Canada and the United States, on the 24th and 25th of September 1844.

Conduct of the game
Test cricket is played between two teams of eleven players over a period of up to a maximum of five days - although matches are sometimes completed early when one side wins well within the time allotted (e.g. in three or four days). On each day there are usually three two-hour sessions with a forty minute break for "lunch" and a twenty minute break for "tea"; in England typically 11am-1pm, 1.40pm-3.40pm, 4pm-at least 6pm (play often continues later - up to a maximum of 30 minutes overtime - to make up for overs lost due to the weather, to make up the required minimum number of overs for the day, or if a team is close to being dismissed). The duration of earlier sessions can be altered if there have been weather interruptions or (in certain circumstances) if the state of play so dictates. For example, if rain has stopped play, lunch may be taken early to leave more time in the afternoon for play without rain and/or on a drier pitch. If a team is dismissed close enough to a scheduled break, the break may be brought forward and the other team begin its innings after the break. In the early days of the game, Test matches were played over three or four days and there have also have been 'Timeless Tests', where there was no predetermined length of the match.

Before the start of play on the first day, the match referee and the two team captains meet at the centre wicket for a coin-toss. The home captain will toss the coin, with the visiting captain calling either "Heads" or "Tails" whilst the coin is in the air. The captain who wins the toss has the privilege of choosing whether his team will bat or bowl first.

Throughout the following scenarios, the team batting first will be known as "team A" and their opponents will be known as "team B".

* Team A bat until either ten batsmen are dismissed - at which time team A is "all out" and the innings is "completed" - or until the batting captain elects to cease batting (known as a "declaration"). This batting period is known as an "innings". There is no limit to the length of an innings, provided the batting team have at least two batsmen who have not yet been dismissed in the innings. When the tenth batsman is dismissed, the last remaining batsman cannot continue alone and is declared "not out".
* In matches that lose a large percentage of time to poor weather or other extraordinary circumstances, there may not be enough time to complete the first innings (let alone an entire match).
* Normally, after team A's first innings the teams change roles. Team B bat their first innings, and team A bowl and field.
* In the event that team B are dismissed "all-out" in their first innings for a total 200 runs (or more) less than that of team A, the captain of team A has the option of enforcing the "follow-on". In this case teams do not change roles as per normal, and team B bat their second innings.
* Team A's captain may, however, elect not to enforce the follow-on and bat as would normally be the case. This may be to advantage if team A's bowlers are overly fatigued.

Note: In the event that the entire first day of a test match is abandoned without any play, team B may be asked to follow-on if their first innings total is 150 runs (or more) less than that of team A.

In the event the follow-on is enforced:

* Team B bat their second innings immediately after completing their first innings (after a short rest).
* If team B is dismissed with the total of both innings being less than team A's first innings, team A win the test match by a margin of "an innings" plus the difference in total runs scored by each team

* If team B, during its second innings, score enough runs to bring their total past team A's first innings total, team A must bat again. In this case, team A need only bat until their total over 2 innings is greater than that of team B. Their margin of victory is recorded as the number of wickets remaining from the 10 necessary to dismiss a team "all-out".

* If team A are dismissed "all-out" in the fourth innings with a 2 innings total less than that of team B, team B shall be declared the winner, the margin being the total difference in runs scored by each team in the match.

* It is highly uncommon for team B to win after being asked to follow-on. This has occurred only 3 times in more than 1700 test matches.

* In the event that the 5 days elapse before any of the above occur the match is declared a draw, regardless of the current scores of either team.

If the follow-on is not enforced or is not available to be enforced:

* Team A bat their second innings.
* If team A's total score over two innings is less than team B's first innings score, team B win by a margin of "an innings" plus the difference in total runs scored by each team.
* If team B's total score over two innings is more than team A's, team B wins the match. The margin of victory is recorded as the number of wickets remaining from the 10 necessary to dismiss a team "all-out".

* If team B is dismissed in the fourth innings with a 2 innings total less than that of team A, team A win the match, the margin being the total difference in runs scored by each team.
* In the event that the 5 days elapse before any of the above occur the match is declared a draw, regardless of the current scores of either team.

* It is conceivable, however unlikely, that a test match may end in a tie. A tie occurs when, after a completed fourth innings, each team has scored an equal total of runs. A tie is distinct from a draw, as a draw is declared when a match has not been completed within five days, a tie is a completed match.

There have been only 2 ties in over 1,700 Test matches. Both matches are regarded amongst the most exciting ever played.

The decision for the winner of the toss to bat or bowl first is based on an assessment of the relative strengths and weaknesses of each team and the conditions of the wicket. Most of the time pitches tend to become hard to bat on as the game nears its conclusion, and players bat more poorly after the fatigue of four solid days of cricket, so teams usually prefer to bat first. However, sometimes the conditions at the very beginning of the match particularly suit fast bowling, so if either team has particularly strong set of pace bowlers, the team winning the toss may choose to bowl first (either to take advantage of their own attack or to disallow the opposition the use of a "green" wicket whose erratic bounce will help seam bowling). A quote usually attributed to WG Grace displays his philosophy of what to do if the captain were to win the toss. "When you win the toss – bat. If you are in doubt, think about it, then bat. If you have very big doubts, consult a colleague – then bat."

After 80 overs, the captain of the bowling side has the option to take a new ball. A new ball, which is harder than an old ball, generally favours fast bowlers who can make it bounce at a greater range of (unpredictable) heights and speeds. Spin bowlers or those using reverse swing prefer an old ball. The captain may delay the decision to take the new ball if he wishes to continue with his spinners (because the pitch favours spin), though in general the new ball is looked forward to as an opportunity to introduce new life into the bowling with more chance of taking wickets.

The rationale for a team declaring their innings closed prior to being bowled out may be confusing for cricketing neophytes, but it is often a sound tactic. Remember that to win a game, the losing side must be given the opportunity to complete two innings. If they do not do so the game ends in a draw, no matter how many runs they may be behind (an example of this is Sri Lanka's 952 run innings against India. Despite this being the highest total runs in a test match innings, the game was drawn). Therefore, a team with a large lead will declare to give themselves more time to bowl at the opposition and take all their wickets.

Players and officials

Players
A team consists of eleven players. Depending on his or her primary skills, a player may be classified as a specialist batsman or bowler. A balanced team usually has five or six specialist batsmen and four or five specialist bowlers. Teams nearly always include a specialist wicket-keeper because of the importance of this fielding position. Each team is headed by a captain, who is responsible for making tactical decisions such as determining the batting order, the placement of fielders and the rotation of bowlers.

A player who excels in both batting and bowling is known as an all-rounder. One who excels as a batsman and wicket-keeper is known as a "wicket-keeper/batsman", sometimes regarded as a type of all-rounder. True all-rounders are rare; most players focus on either batting or bowling skills.

Umpires
Two on-field umpires preside over a match. One umpire stands behind the bowler's wicket, and adjudicates on most decisions. The other (the "square leg umpire") stands with a side view of the batsman (usually near the fielding position called square leg), and assists in decisions for which he or she has a better view. In some professional matches the facility exists for them to refer some decisions to a third umpire, who has the assistance of television replays. In international matches a match referee ensures that play is within the laws of cricket and the spirit of the game. The third umpire and referee do not take the field during play.

Scorers
Two scorers are appointed; usually, one is provided by each team. The laws of cricket specify that the official scorers are to record all runs scored, wickets taken and (where appropriate) overs bowled. They are to acknowledge signals from the umpires, and to check the accuracy of the score regularly both with each other and, at playing intervals, with the umpires. In practice scorers also keep track of other matters, such as bowlers' analyses, the rate at which the teams bowl their overs, and team statistics such as averages and records. In international and national cricket competitions, the media often require notification of records and statistics, so unofficial scorers often keep tally for broadcast commentators and newspaper journalists. The official scorers occasionally make mistakes, but unlike umpires' mistakes these can be corrected after the event.

One Day International

One Day International (ODI) is a form of cricket, in which over 50 overs are played per side between two national cricket teams. The Cricket World Cup is played in this format. One Day International matches are also called "Limited Overs Internationals (LOI)", because they are limited overs cricket matches between national sides, and if the weather interferes they are not always completed in one day. Important one-day matches, international and domestic, often have two days set aside, the second day being a "reserve" day to allow more chance of the game being completed if a result is not possible on the first day (for instance if play is prevented or interrupted by rain).

The international one-day game is a late twentieth-century development. The first ODI was played on 5 January 1971 between Australia and England at the Melbourne Cricket Ground. When the first three days of the third Test were washed out officials decided to abandon the match and, instead, play a one-off one day game consisting of 40 eight-ball overs per side. Australia won the game by 5 wickets.

In the late 1970s, Kerry Packer established the rival World Series Cricket (WSC) competition, and it introduced many of the features of One Day International cricket that are now commonplace, including coloured uniforms, matches played at night under floodlights with a white ball and dark sight screens, and, for television broadcasts, multiple camera angles, effects microphones to capture sounds from the players on the pitch, and on-screen graphics. The first of the matches with coloured uniforms was the WSC Australians in wattle gold versus WSC West Indians in coral pink, played at VFL Park in Melbourne on 17 January 1979. It was credited with making cricket a more professional sport.

Rules
In the main the Laws of cricket apply. However, in ODIs, each team gets to bat only a fixed number of overs. In the early days of ODI cricket, the number of overs was generally 60 overs per side but now it has been uniformly fixed at 50 overs.

Simply stated the game works as follows:

* An ODI is contested by 2 teams of 11 players each.
* The Captain of the side winning the toss chooses to either bat or bowl (field) first.
* The team batting first sets the target score in a single innings. The innings lasts until the batting side is "all out" (i.e., 10 of the 11 batting players are "out") or all of the first side's allotted overs are used up.
* Each bowler is restricted to bowling a maximum of 10 overs (fewer in the case of rain-reduced matches and in any event generally no more than one fifth or 20% of the total overs per innings).
* The team batting second tries to score more than the target score in order to win the match. Similarly, the side bowling second tries to bowl out the second team for less than the target score in order to win.
* If the number of runs scored by both teams are equal when the second team loses all of its wickets or exhausts all its overs, then the game is declared as a 'tie' (regardless of the number of wickets lost by either team).

Where a number of overs are lost, for example, due to inclement weather conditions, then the number of overs may be reduced. Where the number of overs available for the team batting second is perforce different from the number of overs faced by the team that batted first, the result may be determined by the Duckworth-Lewis method.

The bowling team is subject to fielding restrictions stipulating that nine fielders, including two fielders in catching positions, must be inside the fielding circle for a set number of overs. Traditionally, the fielding restrictions applied for the first 15 overs of each innings.

Twenty20 Cricket

Twenty20 Cricket was first played in English domestic cricket in 2003 to popularise first-class cricket and attract more spectators. It has since spread to many other countries. A Twenty20 match consists of 20 overs for each side, a "free hit" after an illegal no-ball is bowled, short boundaries, batting-friendly pitches, and other rules designed to attract spectators who would not attend the slower-paced one-day games or test matches. The first men's Twenty20 international was between Australia and New Zealand in 2005, the first women's Twenty20 international having been between England and New Zealand in 2004. From 2007 to 2015 the Twenty20 World Championship will be held every two years; the first was staged in South Africa in 2007, and was won by India. It has an abbreviation as T20.

Other forms of cricket

At all levels, the rules of cricket are often modified. At international or first-class levels this is usually in order to make the game more commercially attractive. More or less formal domestic club cricket matches are usually played over one to two days, either two innings per side or one innings per side with limited overs. At lower levels the rules are often changed simply to make the game playable with limited resources, or to render it more convenient and enjoyable for the participants. Variants of the sport are played in areas as diverse as sandy beaches and ice floes. Families and teenagers play backyard cricket in suburban yards or driveways, and the teeming cities of India and Pakistan play host to countless games of "Gully Cricket" or "tapeball" on their streets(played in long narrow streets) with rules such as one bounce catch such rules and lack of space ensure the batsmen have to play cautiously . Tennis balls and homemade bats are often used, and a variety of objects may serve as wickets such as the batters legs, as in "French cricket", which did not in fact originate in France, and is usually played by small children. Sometimes the rules are also improvised: for instance it is sometimes agreed that fielders can catch the ball with one hand after one bounce and claim a wicket, or if only a few people are available then everyone may field while the players take it in turns to bat and bowl.

In Kwik cricket, the bowler does not have to wait for the batsman to be ready before a delivery, leading to a faster, more exhausting game designed to appeal to children, which is often used in English schools' PE lessons. Another modification to increase the pace of the game is the "Tip and Run", "Tipity" Run, "Tipsy Run" or "Tippy-Go" rule, in which the batter must run when the ball touches the bat, even if it the contact is unintentional or minor. This rule, seen only in impromptu games, speeds the match up by disabling the batsman's ability to block the ball. Indoor cricket is played in a netted, indoor arena.

In Samoa a form of cricket called Kilikiti is played in which hockey stick-shaped bats are used.

In Estonia, teams gather over the winter for the annual Ice Cricket tournament. The game juxtaposes the normal summer pursuit with harsh, wintry conditions. Rules are otherwise similar to those for the six-a-side game.

First-class cricket

First-class cricket refers to the class of cricket matches of three or more days scheduled duration, between two sides of eleven players and officially adjudged first-class by virtue of the standard of the competing teams. Matches must allow for the teams to play two innings each, although a team in practice might only play zero or one innings.

First-class cricket is an aspect of major cricket but is not major cricket per se, as is sometimes thought. Major cricket is an unofficial or, at best, quasi-official term that includes limited overs cricket, single wicket and other forms in which players and/or teams of high standard are playing. These forms are not first-class cricket but they are equally as important.

Test cricket, although the highest standard of major cricket, is itself a form of first-class cricket, although the term "first-class" is commonly used to refer to domestic competition only. A player's first-class statistics include his performances in Test matches.

Generally, first-class matches are eleven players a side but there have been exceptions. Equally, although first-class matches must now be scheduled to have at least three days' duration, there have historically been exceptions.

Due to the time demands of first-class competition, the players are mostly paid professionals, though historically many players were designated amateur. First-class teams are usually representative of a geopolitical region such as an English county, an Australian state or a West Indian nation.

MCC 1895
Prior to 1947, the only definition of first-class cricket had been one in Great Britain that dates from a meeting at Lord's in May 1894 between the Marylebone Cricket Club (MCC) committee and the secretaries of the clubs involved in the official County Championship, which had begun in 1890. As a result, those clubs became first-class from 1895 along with MCC, Cambridge University, Oxford University, major cricket touring teams and other teams designated as such by MCC.

ICC 1947
The term "first-class cricket" was formally defined by the then Imperial Cricket Conference (ICC) in May 1947 as a match of three or more days duration between two sides of eleven players officially adjudged first-class; the governing body in each country to decide the status of teams. Significantly, it was stated that the definition does not have retrospective effect. MCC was authorised to determine the status of matches played in Great Britain.

For all intents and purposes, the 1947 ICC definition confirmed the 1895 MCC definition and gave it international recognition and usage.

Hence, official judgment of status is the responsibility of the governing body in each country that is a full member of the International Cricket Council (ICC). The governing body grants first-class status to international teams and to domestic teams that are representative of the country's highest playing standard. It is possible for international teams from associate members of the ICC to achieve first-class status but it is dependent on the status of their opponents in a given match.

According to the ICC definition, a match is first class if:

* it is of three or more days scheduled duration
* each side playing the match has eleven players
* each side may have two innings
* the match is played on natural, and not artificial, turf
* the match is played on an international standard ground
* the match conforms to the Laws of Cricket, except for only minor amendments
* the sport’s governing body in the appropriate nation, or the ICC itself, recognises the match as first-class.

A Test match is a first-class match played between two ICC full member countries subject to their current status at the ICC and the application of ICC conditions when the match is played.

A peculiarity of the two-innings match is the follow-on rule. If the team that batted second is substantially behind on first innings total, it may be required to bat again (i.e., to immediately follow on from its first innings) in the third innings of the match. In first-class cricket, the follow-on minimum lead requirement depends on match duration. In a Test or other match with five or more days duration, the team batting second can be asked to follow on if 200 or more runs behind. If the match duration is three or four days, the minimum lead is 150 runs.

Matches played before the MCC and ICC definitions

The absence of any ruling about matches played before 1947 (or before 1895 in Great Britain) has caused problems for cricket historians and especially statisticians who have been forced to compile their own matchlists. Inevitable differences have arisen and there are variations in published first-class statistics.

For a description of the statistical differences, see : Variations in first-class cricket statistics

Recognised matches

The following matches or competitions are recognised as first-class by the appropriate governing bodies, providing the conditions of the ICC definition are met:

* United Kingdom and Ireland
o County Championship matches
o Marylebone Cricket Club versus a first class county
o Oxford University versus Cambridge University
o Cambridge, Durham, Oxford and Loughborough University Centres of Cricketing Excellence matches versus first class counties
o Scotland versus Ireland
o A first class team versus a touring first class team
* Australia
o Sheffield Shield matches.
o 'Australia A' versus Australian XI
o 'Australia A' versus first class opponents, including State teams
o Australian XI versus first class opponents, including State teams
o A first class team versus a touring first class team
* South Africa
o SuperSport Series matches (involving the pro 6 franchises)
o South African Airways Provincial Challenges (16 provincial teams and Namibia)
o A first class team versus a touring first class team
* West Indies
o Red Stripe Cup matches
o Beaumont Cup matches
o Guystac Trophy matches
o A first class team versus a touring first class team
* India
o Ranji Trophy matches
o Duleep Trophy matches
o Irani Trophy matches
o A State or regional associations versus another state or regional association, provided the associations are affiliated to the Board of Control for Cricket in India
o A first class team versus a touring first class team
* New Zealand
o State Championship matches
o New Zealand 'A' versus a Cricket association, provided the association is affiliated to New Zealand Cricket
o A cricket association versus another cricket association, provided that the associations are affiliated to New Zealand Cricket
o New Zealand 'A' versus a first class opponent
o A cricket association versus a first class opponent, provided the association is affiliated to New Zealand Cricket
o A first class team versus a touring first class team
* Pakistan
o Quaid-e-Azam Trophy matches
o Cricket Associations and Departments (corporate teams) versus each other, or other first class opponents, provided the associations or departments are affiliated to the Pakistan Cricket Board, and the match is organized by the Pakistan Cricket Board
o Pakistan 'A' versus a touring Test team or Kenya
o Pakistan versus a touring 'A' team from a Test country or Kenya
o Pakistan 'A' versus a touring 'A' team from a Test country or Kenya
o A first class team versus a touring first class team
* Sri Lanka
o Premier League (Division I) Matches
o Sri Lanka 'A' (or another team designated by the Board of Control for Cricket in Sri Lanka) versus a touring 'A' team
o A first class team versus a touring first class team
* Zimbabwe
o Logan Cup Matches
o A cricket association versus another cricket association, provided the associations are affiliated to the Zimbabwe Cricket Union
o A first class team versus a touring first class team
* Bangladesh
o National Cricket League of Bangladesh Matches
o Bangladesh A team verses another touring A team
* Kenya
o A first class team (including touring Test teams) versus Kenya
* Other Non-Test Full Member Countries
o Non-Test Full Member Country versus a first class touring team, with the consent of the touring team
o Official Test Trial matches.
o Special matches between teams adjudged first class by the Board(s) of cricket concerned, with the approval of the International Cricket Council
o Games played for the ICC Intercontinental Cup. This competition involves teams from Canada, Bermuda, Ireland, Scotland, the Netherlands, Kenya, Namibia and UAE.

Notes:

* A first class opponent is a team recognized as first class in its home country, and includes foreign touring Test teams (some first class teams are not entitled to play first class matches in other countries; such determinations are made by the local Board of cricket)
* The 'A' Team and the 'XI' Team are the representatives of a nation subordinate to the Test team, and are not always adjudged first class

International structure of cricket

The structure of international cricket has evolved only recently from a traditional ad hoc basis. It had long been traditional for the countries, without any interference from a body such as the International Cricket Council (ICC), to organize for themselves the various cricket matches. Recently, however, the ICC has committed the Test cricket playing nations to play each other in a programme of matches over a period of 10 years. This was set up to encourage some of the better established countries to play the lesser nations more frequently.

The structure will no doubt evolve further as a result of the first Twenty20 international match between New Zealand and Australia on February 17, 2005 and the popularity of Twenty20 cricket in general.

General structure
Most Test matches and One-Day series take place in the form of "tours". In a tour, one nation travels to another and plays warm-up matches, first-class matches against domestic teams such as county or state teams, a series of Test matches against the host nation, and either a series of one-day matches against the host nation or a tournament involving the host nation and another touring nation. The "triangular tournament" format is often used when one tour is about to conclude and the other has just begun or may include one team only for that tournament. In the tournament, the three teams play each other either two or three times. The two teams with the most points (usually two points for a win, one point for a no-result or tie, and no points for a loss) qualify for the one-game final. The bonus point system is also often used in a triangular tournament - if a team's run rate is a fixed percentage higher than the opponent's (usually 33%), an extra bonus point is awarded to the winner. Examples of tournaments where the bonus point system is used include the VB Series and the NatWest Series.

The Test series can last from two matches to six matches. Six-match series were common around 1980, and the Ashes Test series in England was a six-match series from 1981 to 1997 (but five matches in Australia). The last six-match series was held in 1997-98 between the West Indies and England. The most important series last five matches, while the less important ones last two to four matches. The length of the series is based on the home country's attitude towards one-day internationals; traditional nations such as England and Australia usually organize five-match series, while nations where one-day cricket is very popular (such as India and Pakistan) favour three-match series. At most, a perpetual trophy is awarded to the winning team, or to the winner of the previous series in the case of a drawn series. The Ashes (for England versus Australia) is the most famous perpetual trophy. Other perpetual trophies include:

* Frank Worrell Trophy (Australia-West Indies)
* Trans Tasman Trophy (Australia-New Zealand)
o (The ODI trophy between these two nations is the Chappell-Hadlee Trophy)
* Border-Gavaskar Trophy (Australia-India)
* Wisden Trophy (England-West Indies)
* Warne-Muralitharan Trophy (Australia-Sri Lanka)

The One-day series lasts from three to seven matches. Usually, the shorter one-day series are played at the same time as longer Test series - although the one-day matches and Test matches are usually played in groups. These days, it is rare that a Test series is interrupted by one-day internationals. In addition to tours, nations may organize one-day matches at neutral venues. The Sahara Cup was a one-day series played annually between India and Pakistan in Toronto, until the Indian government ordered the suspension of all cricketing ties with Pakistan, which were revived in 2004. Similarly, a semiannual Triangular Tournament was organized at Sharjah, in the United Arab Emirates. The tournament almost always involved the traditional rivals India and Pakistan. However, the tournament has lost its luster because the overwhelming number of cricket matches has spoiled the pitch. In contrast to the one-dayers, Tests are almost never held in neutral venues. A triangular Test tournament was held in England in 1912, requiring South Africa to play Australia in Manchester, London and Nottingham. One notable recent exception occurred when Pakistan played some Test matches in Sharjah; many other nations had decided to boycott Pakistani grounds due to violence, including bombings, that had occurred during a tour by the New Zealand cricket team.

Security implications have also affected tours to Sri Lanka, and tours to Zimbabwe are currently being questioned due to the political situation in that country. In the 2003 World Cup tournament, New Zealand forfeited its game scheduled in Kenya.

In addition to the one-day series and tournaments organized by the nations themselves, the ICC organizes two tournaments. The World Cup is held every four years; it involves all the Test-playing nations, Kenya, and also a number of qualifying nations. The ICC Champions Trophy, previously known as the ICC Knockout Cup, is held every two years in between World Cups. In the Champions Trophy, a single loss is likely to eliminate a team from the tournament.

ICC Ten Year Plan
This is a plan designed to make all countries play each other for Test cricket over a period of ten years, was approved in February 2001 by the ICC member countries. Starting from 2002 and running until 2011, it ensures that each Test country will play the other nine home and away over a period of ten years, in addition to any matches the individual cricket boards organise on their own. Thus, India and Pakistan played 12 ODIs and 6 Tests against each other in their respective countries (not including neutral ground ODI tournaments such as the Asia Cup) from 2004 to April 2005, and played a further series of 3 Tests and 5 ODIs in the winter of 2006. However, because of the rigorous schedule of the Ten Year Plan, there is hardly any time left over to schedule other series, and there have been voices criticising the amount of international cricket that is played , with the risk of injury and player burnout as reasons for why this amount should be reduced. The ICC have defended their policy, citing the number of international players in English county cricket as a sign that there is not too much cricket for the players.