MBR Basketball has openings for a girls’ high-school age team and boys’ sixth- and eight-grade teams and its Open Gym Series this Saturday at Central Maine Community College in Auburn. Contact Jon Gilson at jon@mbr.org or 318-6523. The cost is $75 per game.

Volunteers are needed to help with the Urban Runoff 5K and Green Neighbor Family Fest on April 21 at Deering High School in Portland. The event benefits 14 communities in the Portland and Saco areas. Most jobs are just two hours long. To sign up and read job descriptions, visit www.urbanrunoff5k.com/p/volunteer.html.