Shoreline Roller Derby presents Pump up the Jam, a double header fundraiser, on Saturday, June 22, starting at 5 p.m. at Galaxy Roller Rink in Groton. Proceeds benefit the Babies Heart Run, a yearly motorcycle run that raises money for parents with babies in the Yale New Haven and Lawrence + Memorial neonatal units.

Tickets are $12 at the door or $10 ahead of time from any SLDR member. Kids age 10 and younger get in free with a paid adult. Doors open at 5 p.m.; the BellaDonnas take on the Bay State Brawlin' Broads at 6 p.m. In the second match, the Salty Broads take on the Granite State Legislashers. Adult beverages, baked goods and more available. Estrogen & Tonic will perform at intermission.