From the Official Babe Ruth League Rule book. This rule applies to EJBL as we play Cal Ripken Baseball which is part of Babe Ruth League:
11.03 PLAYER ELIGIBILITY
1. d. To be eligible for tournament play in any division of Babe Ruth League, Inc. a player must have played in at least one-half (1/2) of his team's scheduled league games played prior to the start of tournament play.
NOTE: When an odd number of games are involved the player receives the benefit - i.e. for eligibility 1/2 of thirteen games played is six games. If a player is unable to meet the above because of injury or participation in scholastic sports, contact Babe Ruth League, Inc.