Sunday’s Nation’s Triathlon was a pretty big deal — there have been claims that the number of registered participants — including Mayor Adrian Fenty — may have broken a Guinness World Record. The event, which involved a 1.5 kilometer swim, a 40 kilometer bike ride and a 10 kilometer run, was won by Robert Wade on the men’s side (who finished with a 1:57:13) and Peggy Yetman on the women’s side (she finished in 2:07:20). The Tri is always a prime opportunity to capture some of the best action photography in the District — Swim Bike Run Photography, a collective of local photographers, was on hand and kindly allowed us to show off their work to the world.