(7) players per team are allowed on the field at any one time.
Must field at least 5 players (in mixed leagues at least 2 must be female)
Teams may have as many as 16 players on their squad.
Teams must forfeit if they do not have the ability to field 5 players.


Substitutions can occur in between downs. Substitutions during a down are not allowed. The team must maintain no more than 7 people on the field. Play cannot resume until all extra players are on the sideline.


Games are played in two, 25-minute halves separated by a two (2) minute half time. The referee maintains a running clock throughout each half. The clock will only be stopped for injuries. Each team has three 30 second time outs in the game (must be in possession of the ball).


Before overtime begins, the captains will reconvene with the referee, and another coin toss will take place. The winner of the coin toss will decide whether they want to defend or receive or in which direction they want to face. The first team to score will win the game.


Before the game begins, the team captains will meet with the referee for a coin toss.

The winner of the coin toss will decide if they want to either defend or receive the ball or in which direction they want to play for the 1st half. The second half the other team gets first choice.

Each team has four (4) downs to move the ball 10 yards down field.

Play starts from the 10 yard line. The offensive team has four (4) downs to cross a mark 10 yards up from where the ball is initially downed. If the attacking team fails to make the 1st down after 4 attempts, the defending team takes possession exactly where the ball was last downed. This is called a turn over on downs. Huddles are allowed in between plays, and during substitutions. The offensive team must start the play within 24 seconds or they will receive a delay of game penalty. A player is considered tackled when a member of the opposing team has ripped off the flag of the ball runner. Only flags on the ball runner will constitute a tackle and signal the end of a down. Flag belts will be worn around the waist of all players. In addition, a player is considered tacked if their knee or wrist makes contact with the ground or if they fall over. If a player is down due to pushing/roughness, a penalty will occur. Any whistle makes the ball dead.


A touchdown is worth six (6) points. In order to score a touchdown, the ball must be in the possession of the runner and break the plane of the end zone the player would run towards to score. If catching in the end zone, one foot must land inbounds for the touchdown to be valid. After the team has gotten a touchdown then they will get the ball back in order to go for extra points. If they score again from the 5-yard line, then they get one additional point. If they score again from the 12-yard line, then they will receive 2 additional points. The teams have one play to score. The scored against team will then start a new drive from the 10 yard line.

Blocking & The Line

Blocking must be open handed at all times. No full extension blocking with hands (no pushing). Players on the line are not allowed to latch onto clothing. Holding onto clothing will result in a holding penalty. You cannot block in the back, to the neck, or the head at any point in time at any place on the field. Doing so is considered Illegal contact. On the line, Females on defense can line up against females or males, but a male on defense can only line up against another male.


The ball can be passed forward behind the line of scrimmage. After the pass the receiver must advance and no more forward passes are allowed. A female player must be used in the first 3 downs, or a 5 yard penalty will be assessed on fourth down. If a first down is made (even on the third down) then the count resets. If she plays as a quarterback, then she is not allowed to complete a hand off, but must either throw an overhand pass across the line of scrimmage or a lateral pass. If a female player is not used in some aspect during the 1st three (3) downs then a 5 yard penalty will be incurred by the team on offence and a female will have to be used during the fourth down in some capacity. If a female is not used during the 4th down, the ball changes possession at the line of scrimmage and the 4th down play does not count. If a ball is fumbled, then the ball is dead on the spot. Intentional grounding by offence will result in a 10 yard penalty and loss of down. There is only one rush per four down series (only time the QB can rush). Quarterback has 5 seconds (counting 1 Mississippi, 2 Mississippi) to throw the ball or hand off. The team on offence can hand off the ball multiple times. If a play begins within 5 yards of the end zone, then only females are allowed to run the ball. Ball runners are not allowed to jump to avoid a defender.


Defense: the offence advances,

 Offside: 5 yards

 Interference: 10 yards and automatic first down

 Illegal contact: (holding, etc.) 10 yards

 Illegal flag pull: (before receiver has ball) 5 yards

 Illegal rushing: 5 yards

Offense: Offence goes back

 Illegal motion: (more than one person moving, false start) 5 yards

 Offensive pass interference: 10 yards and loss of a down

 Flag guarding: 10 yards from where the incident occurred

 Delay of game: 5 yards

Referees determine incidental contact that may result from normal run of play. All penalties will be assessed from the line of scrimmage. Only the team captain may ask the referee questions about rule clarification and interpretations. Players cannot question judgment calls. Games cannot end on a defensive penalty, unless the offense declines it.


If your team forfeits a match during the season, the following rules apply: 1st Offense: Loss of game and warning issued. 2nd Offense: Loss of game and staff reserves the right to remove team from playoffs. If you know in advance that your team is going to forfeit a game, we encourage you to call our office so as to help us schedule your opponent a game. Teams have until ten minutes past the designated start time to field a full squad (minimum 2 females). If at that time one team is unable to field a full team, it will be up to the staff and the opposing captain to determine what is allowable. They have the choice of making the team play short handed or forcing a forfeit. We always strongly encourage the former, and look to play a game in all circumstances.



The updated standings will be posted weekly, displaying each teams rank within its skill level.



All eligible teams make the playoffs (teams that have not abused any policies are eligible). In certain situations teams at or near the bottom of the standings may not advance to the playoffs. Check with GO MAMMOTH league coordinator to see if this applies to your league. Playoffs are single elimination.



Ringers used during play offs/finals must be agreed by both sides before the games begin- if a team does not permit another team to use ringers they will have to play short-handed.

Teams may play more than one match per day. Any questions regarding policies, rules, or eligibility must be addressed before the start of the match.



In order to participate in the league, each participant must sign the team waiver. Waivers are provided and must be completed and handed in no later than the first night of play. Players not present the first week of play will still be required to sign a waiver with our staff before participating.



The idea of GO MAMMOTH is to have fun. We hope that all participants keep that in mind when becoming involved. Although the games may become intense, you still can be competitive while maintaining good sportsmanship. With this said, any behaviour deemed unacceptable by staff may result in suspension and/or ejection from a game or the league.



To coordinate and run the league, our refs and/or staff will be available at all times to help the league run as smoothly as possible. If you have questions regarding schedules, policies, rule interpretations, directions to the bar, etc. please ask.