As a chartered member of Little League International, Melrose Little League is invited to participate in state, regional and national Little League competitions each summer. Melrose is allowed to enter one team per season in U10, U11 and U12 divisions, with teams competing in a district-wide tournament (District 12). The winner of the that tournament will go on to a sectional round, and the winner of that Sectional will receive an invitation to play for a state championship. Upon winning a state championship, the U12 team is eligible to play for the Little League World Series in Williamsport, PA. Teams are selected by the an Executive Board from the Board of Directors with input from coaches in the Minors and Majors divisions.