An Australian rules football playing field is a venue where Australian rules football is played.
The playing field is typically a large oval-shaped grass surface, usually a modified cricket field, hence often known as an oval. These fields may vary especially for variations of the game. However, for official Australian Football League matches, strict requirement specifications must be met for stadiums.
Australian football, also called Australian rules football or Aussie rules, or more simply football or footy, is a contact sport played between two teams of 18 players on an oval field, often a modified cricket ground. Points are scored by kicking the ovoid ball between the central goal posts (worth six points), or between a central and outer post (worth one point, otherwise known as a "behind").
During general play, players may position themselves anywhere on the field and use any part of their bodies to move the ball. The primary methods are kicking, handballing and running with the ball. There are rules on how the ball can be handled; for example, players running with the ball must intermittently bounce or touch it on the ground. Throwing the ball is not allowed, and players must not get caught holding the ball. A distinctive feature of the game is the mark, where players anywhere on the field who catch the ball from a kick (with specific conditions) are awarded unimpeded possession. Possession of the ball is in dispute at all times except when a free kick or mark is paid. Players can tackle using their hands or use their whole body to obstruct opponents. Dangerous physical contact (such as pushing an opponent in the back), interference when marking, and deliberately slowing the play are discouraged with free kicks, distance penalties, or suspension for a certain number of matches depending on the severity of the infringement. The game features frequent physical contests, spectacular marking, fast movement of both players and the ball, and high scoring.
A cricket field or cricket oval is a large grass field on which the game of cricket is played. Although generally oval in shape, there is a wide variety within this: perfect circles, elongated ovals, rounded rectangles, or irregular shapes with little or no symmetry – but they will have smooth boundaries without sharp corners, almost without exception. There are no fixed dimensions for the field but its diameter usually varies between 450 and 500 feet (140 and 150 m) for men's cricket, and between 360 feet (110 m) and 420 feet (130 m) for women's cricket.
Cricket is unusual among major sports (along with golf, Australian rules football and baseball) in that there is no official rule for a fixed-shape ground for professional games. In some cases, fields are allowed to have even greater peculiarities, such as the 2.5m slope across the Lord's Cricket Ground, or the lime tree which sat inside the fence of the St Lawrence Ground.