Rules and game-play
Main article: Laws of cricket
Summary
Cricket is a bat and ball game, played between two teams of eleven players each.[19][20] One team bats, attempting to score runs, while the other bowls and fields the ball, attempting to restrict the scoring and dismiss the batsmen. The objective of the game is for a team to score more runs than its opponent. In some forms of cricket, it may also be necessary to dismiss the opposition in order to win the match, which would otherwise be drawn.
Format of the game
A cricket match is divided into periods called innings. It is decided before the match whether each team will have either one innings or two innings each. During an innings (innings ends with "s" in both singular and plural form), one team fields and the other bats. The two teams switch between fielding and batting after each innings. All eleven members of the fielding team take the field, but only two members of the batting team (two batsmen) are on the field at any given time.
The two batsmen stand at opposite ends of the pitch, each behind a line on the pitch known as a crease. The fielding team's eleven members stand outside the pitch, spread out across the field.
At each end of the pitch is a wooden target called a wicket. One designated member of the fielding team, called the bowler, is given the ball, and bowls the ball from one end of the pitch to the wicket behind the batsman on the other side of the pitch. The batsman tries to prevent the ball from hitting the wicket by striking the ball with a bat. If the bowler succeeds in hitting the wicket the batsman is dismissed. A dismissed batsman must leave the field, to be replaced by another batsman from the batting team.
If the batsman is successful in striking the ball and the ball is not caught before it hits the ground, the two batsmen may then try to score points (runs) for their team by running the length of the pitch, grounding their bats behind the opposite crease. Each crossing and grounding by both batsmen is worth one run. The batsmen may attempt one run, multiple runs, or elect not to run at all. By attempting runs, the batsmen risk dismissal, which can happen if the fielding team retrieves the ball and hits a wicket with the ball before either batsman reaches the opposite crease.
If the batsman hits the bowled ball over the field boundary without the ball touching the field, the batting team scores six runs and may not attempt more. If the ball touches the ground and then reaches the boundary, the batting team scores four runs and may not attempt more. When the batsmen have finished attempting their runs, the ball is returned to the bowler to be bowled again. The bowler continues to bowl toward the same wicket, regardless of any switch of the batsmen's positions.[21]
After a bowler has bowled six times (an over), another member of the fielding team is designated as the new bowler. The new bowler bowls to the opposite wicket, and play continues. Fielding team members may bowl multiple times during an innings, but may not bowl two overs in succession.
The innings is complete when 10 of the 11 members of the batting team have been dismissed, one always remaining "not out", or when a set number of overs has been played. The number of innings and the number of overs per innings vary depending on the match.
Pitch, wickets and creases
Main articles: Cricket pitch, Wicket, and Crease (cricket)
See also: Stump (cricket) and Bail (cricket)
Playing surface
Cricket is played on a grassy field.[22] The Laws of Cricket do not specify the size or shape of the field,[23] but it is often oval. In the centre of the field is a rectangular strip, known as the pitch.[22]
The pitch is a flat surface 10 feet (3.0 m) wide, with very short grass that tends to be worn away as the game progresses.[24] At either end of the pitch, 22 yards (20 m) apart, are placed wooden targets, known as the wickets. These serve as a target for the bowling (also known as the fielding) side and are defended by the batting side, which seeks to accumulate runs.
Stumps, bails and creases
Each wicket on the pitch consists of three wooden stumps placed vertically, in line with one another. They are surmounted by two wooden crosspieces called bails; the total height of the wicket including bails is 28.5 inches (720 mm) and the combined width of the three stumps, including small gaps between them is 9 inches (230 mm).
Four lines, known as creases, are painted onto the pitch around the wicket areas to define the batsman's "safe territory" and to determine the limit of the bowler's approach. These are called the "popping" (or batting) crease, the bowling crease and two "return" creases.
The stumps are placed in line on the bowling creases and so these creases must be 22 yards (20 m) apart. A bowling crease is 8 feet 8 inches (2.64 m) long, with the middle stump placed dead centre. The popping crease has the same length, is parallel to the bowling crease and is 4 feet (1.2 m) in front of the wicket. The return creases are perpendicular to the other two; they are adjoined to the ends of the popping crease and are drawn through the ends of the bowling crease to a length of at least 8 feet (2.4 m).
When bowling the ball, the bowler's back foot in his "delivery stride" must land within the two return creases while at least some part of his front foot must land on or behind the popping crease. If the bowler breaks this rule, the umpire calls "No ball".
The importance of the popping crease to the batsman is that it marks the limit of his safe territory. He can be dismissedstumped or run out (see Dismissals below) if the wicket is broken while he is "out of his ground".
Bat and ball
Main articles: Cricket bat and Cricket ball
The essence of the sport is that a bowler delivers the ball from his end of the pitch towards the batsman who, armed with a bat is "on strike" at the other end.
The bat is made of wood (usually White Willow) and has the shape of a blade topped by a cylindrical handle. The blade must not be more than 4.25 inches (108 mm) wide and the total length of the bat not more than 38 inches (970 mm).
The ball is a hard leather-seamed spheroid, with a circumference of 9 inches (230 mm). The hardness of the ball, which can be delivered at speeds of more than 90 miles per hour (140 km/h), is a matter for concern and batsmen wear protective clothing including pads (designed to protect the knees and shins), batting gloves for the hands, a helmet for the head and a box inside the trousers (to protect the crotcharea). Some batsmen wear additional padding inside their shirts and trousers such as thigh pads, arm pads, rib protectors and shoulder pads. The ball has a "seam": six rows of stitches attaching the leather shell of the ball to the string and cork interior. The seam on a new ball is prominent, and helps the bowler propel it in a less predictable manner. During cricket matches, the quality of the ball changes to a point where it is no longer usable, and during this decline its properties alter and thus influence the match.
Umpires and scorers
Main articles: Umpire (cricket) and Scorer
The game on the field is regulated by two umpires, one of whom stands behind the wicket at the bowler's end, the other in a position called "square leg", a position 15–20 metres to the side of the "on strike" batsman. The main role of the umpires is to adjudicate on whether a ball is correctly bowled (not a no ball or a wide), when a run is scored, and whether a batsman is out (the fielding side must appeal to the umpire, usually with the phrase How's That?). Umpires also determine when intervals start and end, decide on the suitability of the playing conditions and can interrupt or even abandon the match due to circumstances likely to endanger the players, such as a damp pitch or deterioration of the light.
Off the field and in televised matches, there is often a third umpire who can make decisions on certain incidents with the aid of video evidence. The third umpire is mandatory under the playing conditions for Test matches and limited overs internationals played between two ICC full members. These matches also have a match referee whose job is to ensure that play is within the Laws of cricket and the spirit of the game.
The match details, including runs and dismissals, are recorded by two official scorers, one representing each team. The scorers are directed by the hand signals of an umpire. For example, the umpire raises a forefinger to signal that the batsman is out (has been dismissed); he raises both arms above his head if the batsman has hit the ball for six runs. The scorers are required by the Laws of cricket to record all runs scored, wickets taken and overs bowled; in practice, they also note significant amounts of additional data relating to the game.
Innings
The innings (ending with 's' in both singular and plural form) is the term used for the collective performance of the batting side.[25] In theory, all eleven members of the batting side take a turn to bat but, for various reasons, an innings can end before they all do so. Depending on the type of match being played, each team has one or two innings apiece.
The main aim of the bowler, supported by his fielders, is to dismiss the batsman. A batsman when dismissed is said to be "out" and that means he must leave the field of play and be replaced by the next batsman on his team. When ten batsmen have been dismissed (i.e., are out), then the whole team is dismissed and the innings is over. The last batsman, the one who has not been dismissed, is not allowed to continue alone as there must always be two batsmen "in". This batsman is termed "not out".
An innings can end early for three reasons: because the batting side's captain has chosen to "declare" the innings closed (which is a tactical decision), or because the batting side has achieved its target and won the game, or because the game has ended prematurely due to bad weather or running out of time. In each of these cases the team's innings ends with two "not out" batsmen, unless the innings is declared closed at the fall of a wicket and the next batsman has not joined in the play.
In limited overs cricket, there might be two batsmen still "not out" when the last of the allotted overs has been bowled.
Overs
Main article: Over (cricket)
The bowler bowls the ball in sets of six deliveries (or "balls") and each set of six balls is called an over. This name came about because the umpire calls "Over!" when six balls have been bowled. At this point, another bowler is deployed at the other end, and the fielding side changes ends while the batsmen do not. A bowler cannot bowl two successive overs, although a bowler can bowl unchanged at the same end for several overs. The batsmen do not change ends and so the one who was non-striker is now the striker and vice-versa. The umpires also change positions so that the one who was at square leg now stands behind the wicket at the non-striker's end andvice-versa.
Team structure
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 well-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 as most players focus on either batting or bowling skills.
Bowling
Main articles: Bowler (cricket), Bowling (cricket), and Bowling strategy (cricket)
The bowler reaches his delivery stride by means of a "run-up", although some bowlers with a very slow delivery take no more than a couple of steps before bowling. A fast bowler needs momentum and takes quite a long run-up, running very fast as he does so.
The fastest bowlers can deliver the ball at a speed of over 90 miles per hour (140 km/h) and they sometimes rely on sheer speed to try and defeat the batsman, who is forced to react very quickly. Other fast bowlers rely on a mixture of speed and guile. Some fast bowlers make use of the seam of the ball so that it "curves" or "swings" in flight. This type of delivery can deceive a batsman into mistiming his shot so that the ball touches the edge of the bat and can then be "caught behind" by the wicketkeeper or a slip fielder.
At the other end of the bowling scale is the "spinner" who bowls at a relatively slow pace and relies entirely on guile to deceive the batsman. A spinner will often "buy his wicket" by "tossing one up" (in a slower, higher parabolic path) to lure the batsman into making a poor shot. The batsman has to be very wary of such deliveries as they are often "flighted" or spun so that the ball will not behave quite as he expects and he could be "trapped" into getting himself out.
In between the pacemen and the spinners are the "medium pacers" who rely on persistent accuracy to try and contain the rate of scoring and wear down the batsman's concentration.
All bowlers are classified according to their looks or style. The classifications, as with much cricket terminology, can be very confusing. Hence, a bowler could be classified as LF, meaning he is a left arm fast bowler; or as LBG, meaning he is a right arm spin bowler who bowls deliveries that are called a "leg break" and a "Googly".
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: this is known as "throwing" or "chucking", and can be difficult to detect. The current laws allow a bowler to straighten his arm 15 degrees or less.
Fielding
Main articles: Fielding (cricket) and Fielding strategy (cricket)
All eleven players on the fielding side take the field together. One of them is the wicket-keeper aka"keeper" who operates behind the wicket being defended by the batsman on strike. Wicket-keeping is normally a specialist occupation and 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), a box over the groin, 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. He is the only player who can get a batsman out stumped.
Apart from the one currently bowling, the other nine fielders are tactically deployed by the team captain in chosen positions around the field. These positions are not fixed but they are known by specific and sometimes colourful names such as "slip", "third man", "silly mid on" and "long leg". There are always many unprotected areas.
The captain is the most important member of the fielding side as he determines all the tactics including who should bowl (and how); and he is responsible for "setting the field", though usually in consultation with the bowler.
In all forms of cricket, if a fielder gets injured or becomes ill during a match, a substitute is allowed to field instead of him. The substitute cannot bowl, act as a captain or keep wicket. The substitute leaves the field when the injured player is fit to return.
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