Anonymous wrote:This won't help the OP as I only know about Fairfax County, but GMU has one at their fieldhouse in Fairfax, but you are supposed to show a student ID to get in. Sport and Health has one at Tysons (decent, but just the distance to go around 2 basketball courts, so not even 800 meters), one at Baileys Crossroads (not in great shape the last time I was there), and one at Worldgate in Herndon (about 11 laps to a mile but the ends are too tight to really carry speed through).
Spring Hill Rec Center in McLean is getting one when their reno completes in a year and a half, but I don't know how long it is going to be.
A standard indoor track is 200m, or 8 laps in a mile (or 1600m which is slightly less than a mile). A standard outdoor track is 400m.