Crosby, Stills and Nash

The rock and folk trio Crosby, Stills and Nash closes out the 2005 Waterside Music Series on Sunday at the Calvert Marine Museum's Washington Gas Pavilion. Gates open at 6:30 p.m.; concert begins at 7 p.m. Concert is held rain or shine, and food and drinks will be available; no coolers allowed. $55, premium seating; $45, reserved seating. Calvert Marine Museum, Route 2, Solomons. 410-326-2042.

Making the Cut

Racers may not be "tradin' paint," but they will go wheel to wheel to see who can cut it in the Bowles Farms Turf Battle lawn mower race Sunday. Sanctioned by the National Lawn Mower Racing Association. Gates open at 10 a.m.; racing begins at 2 p.m. There will be four racing classes of riders from around the country, with top speeds expected to reach 60 mph. Proceeds benefit the 7th District Volunteer Rescue Squad of St. Mary's County. $7, adults; free, children 8 and younger. Bowles Farms, 22880 Budd's Creek Road, Clements. www.letsmow.com.

Stephen Stills of Crosby, Stills and Nash performs Aug. 1 in New York. The folk trio will be in concert Sunday at the Calvert Marine Museum.