OKLAHOMA CITY - During Sunday morning's Oklahoma City Memorial Marathon a runner collapsed near the finish line and was rushed to a metro hospital.
Monday, we learned more about the man.
We know he is 36-years old and is listed in good condition in a metro hospital.
However, doctors are still trying to figure out what went wrong, causing the man to collapse.
His family did not want to be interviewed Monday but said he's doing much better.
Meanwhile, we spoke with medical experts and those in the running community about just how often something like this happens.
Jeff Kidder, with runhers, said, "They're young, they're vibrant, they go through the training, they're fine and all the sudden the catastrophe strikes."
While it's rare, catastrophes like what happened to the half marathoner Sunday do happen.
While no one knows for sure what caused the man to collapse, we're told he had been training.
Kidder has worked with numerous runners and has seen situations like Sunday's collapse happen at marathons across the country.
Kidder said, "In the case of the two deaths we had in Tulsa, they were pre-existing conditions that not even the participant knew they had."
He said when it comes to running long distances, preparation is only one of the things an athlete needs.
Kidder said, "If you are thinking about getting into long-distance running, whatever it may be, do spend a little time with your doctor."
OKC Memorial Marathon officials were not able to go on camera Monday but said they do everything they can to prepare for this type of incident.
This year there were close to 300 medical professionals on hand during the event, a dozen medical tents along the course and several paramedics on bikes riding the course watching to see if anyone needed assistance.
Marathon officials make every effort to help runners as quickly as possible.
Kidder said, "The goal is to get to them within a minute."
Marathon officials tell us they actually have teams from other marathons come to watch and evaluate how the medical teams do and so far they have had great reviews about the teams working in Oklahoma City.
In the case where the 36-year-old runner collapsed, we know someone was there within seconds to begin helping him.