The teams are required to guess which one is the person in the video.

Each team is required to complete 5 exchanges during the course of the race.

Also like hockey, at times teams will be required to play one or even two players short.

No team is required to choose a player in the draft, but many do.

Each team is required to be in their own half prior to the ball being pushed.

Each team was required to name a 14-player squad for the tournament.

Each team was required to make five players available but could withdraw one name after losing a player.

The rule requires teams to average 15,000 fans per home game.

Each team was required to have four members and were co-ed.

Each team is required to have a goaltender on the field at all times during a game.