 Like running that fast downhill, just like pounding the cement, legs become mush. That first up and down just destroys your legs. It's tough. Organizers say people from 41 states and four countries participated in this year's event. Many were in costume, including a Lady Liberty. For NPR News, I'm Brian Boll in Eugene, Oregon. And I'm Giles Snyder. This is NPR News. It's 534 and this is KUNR.