AA Rules

UpdatedFriday May 10, 2019 byMYB.

Double A

Meridian Youth Baseball | Cal Ripken AA & A Rules

Follow the Cal Ripken Rule Book with the following exceptions:

Game Play

  • League Age 9, 10, & 11.
  • League will provide home plate umpires.
  • Home team will provide volunteer field umpires.
  • Pitching rubber is 46’-0” from home plate.ØBases are 60’-0” apart.
    • Leading off and Picking off is not allowed.
    • Stealing is allowed but the runner cannot leave the base until the pitch crosses the front of the base.
    • Bunting is allowed but once a player shows bunt, they may not swing at the pitch.

Line Up

  • Bat the entire lineup with free defensive substitution.
  • Each player must play a minimum of two defensive innings
  • There will be NO compensation for unbalanced rosters.
    • Teams with 12 players will bat 12. Teams with 9 players will bat 9.There will be no automatic outs or any other balancing efforts.

Time Limits

  • No new inning after 6 innings or 1 hour and 30 minutes of play.
  • Drop dead time of 1 hour and 45 minutes of play.
  • No minimum number of innings to make a complete game.
  • Extra innings may be played if tied after 6 innings and 1 hour and 30 minutes have not has not expired.
  • Regular season games with a score tied at the end of last regulation inning will be declared a tie. No additional innings will beplayed.
  • Mercy rule applies if after the 4th inning is completed, and a team is ahead by 15 or more runs, the game is over OR after the5th inning is completed, and a team is ahead by 10 or more runs, the game is over.


  • Pitch Counts Limits and Rest Requirements must be followed for league age.
  • Manager must keep track on the league approved pitch count form.


  • The non-wood bats may must have the USABaseball Bat marking.
  • Wood bats are permitted.
  • Bats with BBCOR marking are NOT Permitted.
  • Bat barrel must be no greater than 2 5/8” diameter.


  • Home team will be considered the official book and will be responsible for writing official game start time given by the home plate umpire.
  • Both teams will be responsible for keeping track of pitching records in their own scorebooks. If pitching records requested of a manager and they are not available, the team requesting them can deem your pitcher ineligible to pitch in that game.

Field Responsibilities

  • No infield will be taken by either team prior to a game.
  • No use of the pitcher’s mound on the main field will be allowed prior to the start of a game.
  • Home team will prep the field before each game.
  • Visiting team will put the field to bed after each game.

MYB AA & A Rules (2).pdf