Short form cricket is a collective term for several modified forms of the sport of cricket, with playing times significantly shorter than more traditional forms of the game.
A typical short form cricket match can be completed within two to three hours, compared to 7–8 hours for a one-day cricket match, or five days for a Test match.
These short forms of cricket have been developed locally by various authorities, to fill a perceived marketing vacancy for a form of the sport which can be completed in a few hours, rather than a full day. They tend to emphasise the more "exciting" aspects of cricket as seen by more casual observers of the game, which includes aggressive batting and fast run scoring. In this regard they are successful, as shortened forms of cricket attract crowds of spectators who might not otherwise attend a cricket match.
Although twenty over cricket matches have existed for decades and remains the most popular amateur form of the game, the professional format Twenty20 cricket was introduced by the England and Wales Cricket Board in 2003. It is a form of one-day cricket in which each team bats for a maximum of only 20 overs, contrasting with 50 overs for a standard one-day match. This means a game can be completed in about three hours, making it more palatable for children and families than longer matches.
The English first-class counties participate in a Twenty20 Cup competition annually. Many games are played in twilight, again to enhance family spectator appeal. They also feature numerous musical 'stings' for exciting events, such as the dismissal of a batsman, or the hitting of a boundary. Such fours and sixes are made easier to achieve by the shortening of the boundaries.
Major changes from the Laws of Cricket include:
So far, Twenty20 has proved very popular with the public. On 15 July 2004, Middlesex vs. Surrey (the first Twenty20 game to be held at Lord's) attracted a crowd of 26,500, the largest attendance for any county game other than a one-day final since 1953.
On 5 August 2004, New Zealand Women defeated England Women in the first international Twenty20 match, played at Hove in England.