Kenyan runner Hyvon Ngetich was leading the Austin marathon and half-marathon after 23 miles on Sunday when her body gave up on her due to exhaustion.
Ngetich refused the wheelchair and help offered by race volunteers as she dragged her body to the end of the race.
At one point she stopped, totally exhausted, just metres from the finish, but she found the strength to carry on.
After the race, the event's director, John Conley, told Ngetich: "You ran the bravest race and crawled the bravest crawl I have ever seen in my life."
Ngetich told CBS affiliate KEYE-TV: "For the last two kilometres, I don’t remember. Finish line, I don’t remember."
Richard James is the News Director for BuzzFeed Australia and is based in Sydney.
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