Each game is 40 minutes long and will consist of 4 x 10 minute innings OR an innings will end if all the batting team are out. Extra innings can be played if the first 4 innings are completed before the allocated 40 minutes time slot.


Official Rounders England rules apply plus modifications (indicated by ‘m’)

• Teams will be a minimum of 4 up to a maximum of 8 players on the pitch at any one time (m).
• In a mixed event, no more than 3 players on the pitch at any time from each team shall be male (m).
• A match is one innings of 18 good balls (m}.
• The bowler must bowl with both feet within the bowling mat (m}.
• The batter must bat with both feet within the batting mat (m}.


• Batters stand behind the batters line and wait to be called onto the batting mat.
• A player out, stands behind the batters line.
• Umpire calls play.
• Bowler bowls.
• Batter must run after each good ball.
• Batter can choose to run on a no ball
(be out at 1st post).


• A half rounder for reaching and touching 2nd or 3rd post on your hit. If you continue and are out, this score is rescinded.
• A half rounder if the ball reaches the limit of the backward area (m}.
• 1 rounder for reaching and touching 4th post on your hit.

• A half rounder for reaching and touching 4th post.
• A half rounder if the ball reaches the limit of the backward area (m).


• A half rounder if the ball hits the far wall without touching the floor. This is retained if the live batter is subsequently out (m).
• A half rounder if a batter is obstructed.
• A half rounder for two consecutive no balls to the same batter.



• They step off the mat whilst hitting/attempting to hit the ball (m).
• They are caught after hitting a good ball – catches off walls and ceiling are allowed (m).
• They obstruct a fielder or deliberately defiect the ball.
• They run inside a post (unless obstructed).
• They lose contact with the post (bat or hand) when the bowler has the ball on the mat.
• They are stumped at the post they are running to.
• The ball is pitched onto the batting mat when no batters are waiting to bat.
• The ball is pitched onto the batting mat when there are no good balls left.

Optional rule – Void ball

• Indoor venues vary and often have obstacles such as cricket nets, ledges or balconies.
If this is the case, consideration should be given to implementation of this rule, where the umpire calls; if the ball is not safely or easily retrieved by the fielder. The game is reset (batters go back to the post they were waiting at) and the  bowler delivers another ball to the live batter.


The updated standings will be posted weekly, displaying each teams rank and fixture results.


Games must start exactly at the designated start time. Teams that arrive late will be penalised (please see forfeits below). Lateness will also result in shorter games and less rounders for both teams.


If a team does not have a full squad (minimum number of original players required according to the rules) at the designated start time a rounder per minute will be awarded for every minute (max 10 minutes), after 10 minutes the game will be forfeited. (A friendly can be played in the result of a forfeit).


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 in their first game.


As our Rounders leagues are self-umpired sportsmanship is key. 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.