MMSPL follows the SPN rulebook with the following exceptions:

• 5 run mercy per inning
• Mercy rule of 15 runs after 4 innings, and 10 runs after 5 innings

• In the Thursday Masters divisions (both Int and Rec) there are unlimited courtesy runners
  • Runners must be masters age (35 years as of December 31, 2024, or older)
  • The same courtesy runner cannot be used in the same inning

• In all divisions EXCEPT Thusday Masters divisions (i.e. Tuesday and Wednesday divisions)
  • Three (3) courtesy runners per game
  • The same courtesy runner cannot be used in the same inning
• Minimum of 8 players to start a game
• Late/new players are added to the bottom of the lineup, even if the batting order has batted around
• Injured players leaving the game are not an out in the batting order, but cannot reenter any games on the same day
• Unlimited home runs

• No tagging beyond the commitment line

• Flip flop rule

• Uniform rule in effect on June 1, 2024 (teams must wear matching tops)