Rules of the Game

The equipment needed to play the game is minimal. As in other kinds of football, players wear boots with stops (known as studs in some regions) in the soles, shorts, and a thick, strong shirt or jumper known as a guernsey.

Eighteen players are permitted to take the field for each team, with an additional four players on an interchange bench (although this number often varies in exhibition and practice matches).

The game is played with an ellipsoid ball which may be caught, kicked or passed to another player by punching, but may not be thrown or handed between players. There is no offside rule and a player may run as far as he likes with the ball, provided they either bounce or touch the ball to the ground every fifteen metres. A player who cleanly catches a kicked ball that has travelled more than 15 metres without anyone else touching it - called a mark - is entitled to an unimpeded kick of the ball, to advance their team towards their goalposts.

Four posts are erected at either end of the oval and markings are placed on the ground. The aim for each team is to kick the ball between the two inner posts of one set, for a goal, worth six points. If the ball travels between one outer and one inner post (which includes striking an inner post), it scores a behind, worth just one point. If the ball travels outside the posts, or strikes the outer-most post, it is deemed out of bounds and is either thrown in or awarded to the opposing side as a free kick, depending on whether it bounced before going out of bounds.

There are no set positions in the rules of the game, but traditionally the field was divided into three major sections: the forward line, back line, and midfield. The forward and back lines were comprised of six players, arranged into two lines of three players each. The midfield generally consists of the designated ruckman (the player who contests the ruck) and players who either stay in the centre area of the ground (between the two 50 metre arcs) or follow the ball and are not confined to a particular area.

The modern game, however, has largely discarded positional play in favour of a free flowing running game and attempting to have loose men in various positions on the ground. The rise in popularity of the hand-pass since the 1970s has greatly influenced this style of play, with players more willing to follow the ball and move it quickly amongst themselves rather than kicking long to a one-on-one marking contest.

In the late 1990s a tactic known as flooding was devised and also shifted focus away from set positions. When a team "plays a flood", they direct two or more of their midfield or forward line players into their defence, thus out-numbering their opponent and making it difficult for any opposing forward to take an uncontested mark. Most football sides are named (and demonstrated) in the traditional set positions, but it is in fact uncommon for players to stay within the traditional areas of their position.

The game is controlled by a number of field umpires (at elite level, three), two boundary umpires whose main job is to conduct throw-ins when the ball leaves the field of play and two goal umpires who judge whether the ball is kicked between the goal posts without being touched by another player or the goal posts (thus scoring a goal), between a goal and point post (thus a point) or outside the goals entirely (thus becoming the boundary umpire's responsibility). The goal umpires wear distinctive uniforms (such as white, and recently brightly coloured, coats) and are equipped with two flags. After a goal is scored and indicated to the players via hand signals, the goal umpire waves the two flags such that the other goal umpire sees and records the goal. One flag is waved for a point.

The game is a fast-paced combination of speed, athleticism, skill and physical toughness. Players are allowed to tackle the player with the ball and impede opposition players from tackling their teammates (known as shepherding), but not to deliberately strike an opponent (though pushing the margins of these rules is often a substantial part of the game). Like most team sports, tactics are based around trying to get the ball, then - through a combination of running with the ball, hand-passing and kicking - deliver it to a player who is within range of goal. Because taking a mark entitles the player to a free kick, a common tactic is to attempt to kick the ball on the full (without bouncing) to a teammate who is within kicking range of goal. In this situation, packs of players often form around the goal square, and the opportunity arises for spectacular high marks (or "speccies"), in which players launch themselves off opponents' backs to mark the ball, high in the air. This particular skill is highly regarded as a spectacle, and an annual "Mark of the Year" is awarded at the end of a season.