CYCLING
» May 20: Greenbelt National Park Training Races, Route 1, 6 p.m.. Velo hosts this summer-long Wednesday night series to help local cyclists prepare for its races. The course is a 1.4-mile loop around Greenbelt Park.
Info: route1velo.com.
» May 23: Michael P. Murad Memorial Road Race, Poolesville, 8 a.m. The race sponsored by the All-American Bicycle Club will feature six categories, including novices, seniors and pros. It will be held on a 8-mile loop. Online entries are due May 20.
Info: aabikes.com.
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» May 24: City Bikes RFK Criterium, RFK Stadium, 8 a.m. This annual circuit race at RFK is open to professionals, amateurs and children.
Info: hubracing.com.
» May 30 and 31: Air Force Cycling Classic, Clarendon. This weekend of cycling features a men’s amateur race, a women’s amateur race, professional race and a noncompetitive ride.
Info: airforcecyclingclassic.com.
GOLF
» June 1 and 2: Women’s Mid-Amateur Championship, Beallsville, Md. The tournament will be held at the Members Club at Four Streams and is open to women ages 30 and over as of June 1. Entries are due May 21.
Info: msga.org.
RUNNING
» May 20: Tidal Basin 3K, West Potomac Park, noon. This monthly race around the Tidal Basin, sponsored by the D.C. Road Runners, is informal and free.
Info: dcroadrunners.org.
» May 23:: Cascades 10K Firechase and 911 Fun Run, Sterling, 8 a.m. This race, which starts at the Lowes Island Community Center, is a fundraiser for the Sterling Volunteer Fire Company.
Info:runwashington.com.
SWIMMING
» May 24: Open Water Swim Clinic, Reston, 9 a.m. The Reston Masters Swim Team holds this clinic at Lake Audubon. Online entries are closed, but swimmers can register at the event.
Info: restonmasters.org
TENNIS
» June 12 to 14: 2009 Maryland Mixed Doubles District League Championship, Frederick. The random draw for the championships will be held May 26. Info: network.usta.com.