In the senior age groups from Bantam and above, the WMBA participates in an interlock league with communities in the surrounding area including Burlington, Oakville, Carlisle, Milton, Kilbride and other communities within a short drive. Our teams are formed from Waterdown registrants. Half of the games are played on the home field and the other half as visitors on the participating community fields.
Baseball rules apply with emphasis on fair play and skills development in a house-league setting. REP programs at these levels are also offered. These competitive REP teams play within the Central Ontario Baseball Association (COBA) league and attempt to qualify for provincial championships at the Ontario Baseball Association (OBA) level.