Flag football is similar to american football in that they both are a non-physical approach to the game of football. Instead of tackling your opponents, you pull a flag that's attached to the other player's belt. Chiefly because there is no dominant sanctioning organization for the sport, the game has mutated into many variations: 9-man, 8-man, 7-man, 6-man, 5-man, and 4-man on a side; coed or single-gender; with kicking and punting and without; with point-after conversions (including some with 1, 2, and 3 point tries) or without; and field sizes that vary from full CFL size, NFL size (120 yards long by 531⁄3 yards wide), to fields a third that size.