League Rules & Regulations

Field of Play


  • Diamond must be prepared according to Baseball Canada distances/regulations (backstop distances not enforced for League play).

  • Outfield fences are mandatory for 13U ‘AAA’ and up (including all 15U and 18U) for league play; outfield distances should be adequate according to Baseball Canada guidelines for league play; Provincial Championship host sites at 13U Tier I will be determined based on adequate distances.

  • Bases must either be permanent (or permanent/magnetic) bases or bases pegged down with two (2) spikes (due to safety)

  • Mounds are mandatory for league play (regulation heights preferred, but not enforced) at 15U and up as well as 13U ‘AAA’ (all rounds) and 13U ‘AA’ Tier I league play; mounds are highly recommended for all levels of play according to Baseball Canada guidelines.

  • Regulation mounds are mandatory for all Provincial Championship play except for 11U ‘A’/’AA’ and 13U ‘A’; mounds are highly recommended at all levels of play according to Baseball Canada guidelines.

Dugout Assignments

League Play – In a neutral site game, the Home team will occupy the third base dugout. When the host association is playing, they may choose either dugout. Exceptions will be made in cases where a team is playing a double-header and already occupies a dugout and for Provincial Championship play.

Provincial Championships – Home team will occupy 3rd base dugout (except in case where a team is playing a double header and already occupies the opposing dugout.


Warm-Up – Home team will be allowed to take a 10-minute pre-game infield/outfield starting 30 minutes prior to game time; visiting team will be allowed to take a 10-minute infield/outfield starting 20 minutes prior to game time; if games are running late, the infield/outfield times may be adjusted or removed in order to complete all scheduled games (each team must receive the same opportunity for pre-game infield/outfield). Teams may not go beyond their allotted time for pre-game warm-up.

Meeting – Meeting at home plate will occur 5 minutes prior to game time with umpires and coaching representative of each team; the line-up card presented to the Home Plate umpire will be considered official (any changes must be communicated to the Official Scorekeeper); each coach must provide an official copy of their line-up card to the umpire and to the opposing team (as well as to the official scorekeeper 15 minutes prior to game time). Any player deemed to be ineligible will be removed from the line-up card at the pregame meeting and the offending coach will be reported to Baseball Alberta by the home plate umpire.

Field Dimensions







60 FT.

70 FT.

80 FT.

90 FT.


44 FT.

48 FT.

54 FT.

60 FT. 6 IN

Thanks to our partners