I found this pretty awesome:
http://www.nytimes.com/2010/12/02/sports/02runner.html"...At the 2.5-mile mark, Reynolds was in third place, pushing for second, among the 169 runners. “I was going to make my move,” she said, “but for some reason my legs just gave out. I was confused, and I started to slow down.”
Within two or three yards of the finish line, Reynolds collapsed, and a race official was at her side within seconds. He told her he could not touch her or help her, but to avoid disqualification, she would have to get over the finish line.
“I said, ‘Are you O.K., and do you want to finish?’ ” said Brian Weaver, the official. “She said ‘Yes,’ and I said, ‘O.K., all you have to do is get your foot across the line, and you don’t have to get up, it’s O.K. if you crawl.’ ”
Reynolds started crawling."
Here is an edited vid of what happened:
http://www.youtube.com/watch?v=BqBerM9FPwA