SUB Football was conceived and first played in Auckland, New Zealand in 1998.
The aim was to attract people not involved in playing Association Football (11 a-side outdoor).
Invariably, when people hear the words "SUB Football" for the first time, they ask "what is SUB Football?" and when told that it's a soccer-based counterpart to rugby-based touch football, the next question is "how does SUB Football differ from normal soccer?".
The fundamental principle of SUB Football is that players are not permitted to use force when taking or attempting to take the ball from an opponent.
The use of defined forms of force is permitted in Association Football.
Listed below are other differences between the two games :

• SUB Football is a summer sport, Association Football is a winter sport.
• There are 7 players in a SUB Football team, 11 in an Association Football team.
• A SUB Football game lasts 40 minutes, in Association Football it's 90 minutes.
• A SUB Football pitch, 60-70 metres in length and 40-50 metres in width, is approximately half the size of an Association Football pitch.
• SUB Football is played on weeknights, Association Football is played at weekends.
• SUB Football may be played by mixed or single gender teams, in Association Football only single gender teams are permitted.
• In SUB Football, unlimited, rolling substitutions are permitted, in Association Football only 3 substitutes are permitted.
• SUB Football may be played in t-shirt, shorts and trainers whereas a matching uniform of shirt, shorts and socks plus soccer boots and shin pads is required in Association Football.
• In SUB Football, three points are awarded for a goal and one point for a try, in Association Football it's goals only.
  
  Other differences can be identified by comparing the Laws of SUB Football which are published on this website and the Laws of Association Football which are published on www.fifa.com