Domeball Rules

01Valid Rosters

Only players on a team roster that have completed the NSA waiver may play. If a team fields a player not on the roster the team will auto forfeit the game in which the illegal player played.

02Lineups

Each team to fill out 1 lineup card before each game, share with the other team and then issue to the ump before game start. Lineups are to include at least 4 females (if fewer, an auto out applies each time through the order, for each female missing). Also, lineups cannot have more than 2 sets of males back-to-back and the 2 sets have to be separated by at least 1 female. Breach of this rule = auto out each time the illegal player takes their at bat (we record an auto out, but the player still takes their at bat).

There is no minimum # of players required — if you only have 8 or 9 you can still play, subject to the above penalties for too few females, and back-to-back males.

03Count

Batters start with a 1:1 count for fast play.

04Run Limit

6-run max. per inning including last inning. This rule may be changed at any time, pending discussion amongst team captains & league convener.

05Game end times

All games must end by the scheduled end time with no exceptions. If a game ends in the middle of an inning, the final score will be the score at the end of the prior inning.

06Live ball

Everything is in play in the Dome within fair territory. E.g. ceilings, walls, mesh dividers. If a ball is caught after making contact with any part of the Dome in fair territory without touching the ground, the catch results in an out. Runners may tag up & attempt to advance like an ordinary fly out.

Any ball that hits the Dome in foul and is caught is just a foul, not an out, unless it was the third strike. Bunting is not permitted.

07Impeded ball

Balls stuck in a part of the Dome structure or that leave the playing field within the infield result in a single, & runners advance only 1 base. Balls stuck beyond the infield result in a ground rule double, and runners advance 2 bases.

08Fielding

Infielders are to take their position in the infield until the ball crosses the plate, i.e. shortstop & third base cannot start any deeper than the door to their right.

Outfielders that receive a ball that hits the ground are not to attempt to throw the batter out at 1st base. If they do the batter will be called safe. Outfielders can relay to 2nd, 3rd, SS, P or C who can then attempt to make the out at 1st base.

09Additional Rules

• All other NSA slo-pitch rules & code of conduct apply;
• All Sports Dome (facility) rules must be followed, e.g. no cleats (but the indoor turf shoes are permitted);
• If you’re playing the 5pm game and soccer nets & benches are on the field please remove them from the field before your game.
• If you’re playing the last Domeball game of the night and no one appears to have the field rented after your game, please put the benches back on the field.

10Fun

Most importantly, please remember we’re here to have fun. Please be respectful to all players, umps, fans and Dome employees. Regardless of whether you think a bad call has been made, or you think someone did something wrong, you are free to call it out, politely, to the umpire.