The Boys AAA Division is for boys in 5th grade. This is a highly competitive division and is the players' first experience playing with regular baseball rules. The teams will play two games each week. Each team is expected to practice at least once each week as well.

In this Division, the rules are only slightly modified from full baseball rules. By this point, the boys will have developed enough strength and skills to play exciting, competitive games. The players will find that the ball is hit to all areas of the field. As such, there are no recommendations regarding positioning. Although a fair distribution of playing time among all players is recommended, game situations may dictate a slightly skewed allocation.

The 2010 Division director is Vinny Macchio.