MOUNTAIN BIKING
May 15: 9 Hours of Cranky Monkey Mountain Bike Relay Race, Flintstone, Md., 11 a.m. Individual racers and teams of two or three will ride as many 9-mile laps as they can in nine hours at Rocky Gap State Park. Info: ex2adventures.com.
May 17: Monday night Wakefield ride, Annandale, 6:30 p.m. The MORE biking club hosts this ride through Wakefield Park every Monday night, weather permitting. It is a moderate- to fast-paced ride. Lights are required. Info: more-mtb.org.
RACE WALKING
May 16: Race walking clinic, Falls Church High School, 7 a.m. The clinic is geared toward beginner race walkers and includes basics of race walking, proper technique and strategy. The free, one-hour clinic will start before the Potomac Valley Track Club’s all-comers track and field meet. Info: pvtc.org.
RUNNING
May 15: Armed Forces Day 10K, Frederick, 7:30 a.m. The 6-mile race will be held at Fort Detrick. Info: steeplechasers.org.
May 15: Trail Days Half Marathon, Damascus, 8:30 a.m. The 13.1-mile run is part of a long weekend of activities celebrating Appalachian Trail Days. Info: traildays.us.
May 16: Walk for Water for Africa, Fairfax, 9 a.m. This 5K through Fairfax neighborhoods is a fundraiser to build water wells in remote African villages. The event is being organized as an Eagle Scout project, and all money will be donated to Africare/African Well Fund. Info: walkforwater2010.org.
SWIMMING
May 29 and 30: Jim McDonnell Lake Swims, Reston. The Reston Masters team is hosting 1- and 2-mile races in Lake Audubon on May 30, with an open-water clinic and practice 1-mile swim on May 29. Slots are filling up, and entries close May 23. Info: restonmasters.org.
TRACK AND FIELD
May 16: All-Comers Track and Field Meet, Falls Church High School, 8:30 a.m. The meet, open to all, includes a variety of races on the track, relays, shot put, long jump, hurdles, race walking and other events. Info: pvtc.org.
