A bike race in a parking garage? That’s the annual Diamond Derby. An office building in Crystal City was cleared of cars and turned into an obstacle course for cyclists. Bales of hay were piled in the middle of the course, giving the contestants a chance to prove how quickly they can dismount their bikes, clear the haystacks, and get back on course. Many of the cyclists dressed up for the occasion in fun costumes, as you can see in these photos:
The obstacle course wasn’t the only chance to race. They also had two goldsprints, side-by-side bicycle rollers that measured which rider was fastest.