UPDATE - A Tulsa runner in the Williams Route 66 Marathon collapsed and died Sunday morning on the half marathon race course. Race organizers confirmed to FOX23 that a 27 year-old man collapsed near 15th and Riverside around 9:30 a.m..
Within a minute a doctor running the race attempted to perform CPR on the man, but it was not successful.
"It just so happened that the doctor was behind him and saw him go down. There was also a nurse who was in front of him, and she turned around and came back," Route 66 Marathon Executive Director Chris Lieberman told FOX23.
Other doctors who were running the race also tried to help the runner. Lieberman said that shows what a close knit group runners are.
"They may have been going for a personal record, they probably have been training for months for this, but they don't think a thing to stop and help another marathoner."
Paramedics were on scene within eight and a half minutes and transported him to OSU Medical Center in Tulsa. It's still unclear what caused his death. Race organizers say his family asked that his name not be released.
Lieberman said the runner did not list any pre-existing conditions when he signed up to run the half marathon. He also said these tragedies are mostly unpreventable.
"Unfortunately, it is a part of our sport, the endurance sports, marathons and half marathons. Unfortunately, it does happen."
This is the second death in the history of the marathon. A 21-year old man passed away in 2008 while running the half-marathon.