Tens of thousands of runners laced up their sneakers early Sunday morning for a grueling run through Oahu for the 41st annual Honolulu Marathon.
Honolulu Marathon officials said 30,568 people registered for the race, but roughly 23,000 were expected to finish the race.
The producers of ABC’s hit show "Extreme Weight Loss" had cameras following Sara Murphy, who stands at 4-feet-4-inches-tall and once weighed close to 250 pounds.
"She couldn’t walk a block without losing breath six months ago. Here she is running her first marathon. She’s killing it. I’m out of breath just trying to keep up with her," said Chris Powell, trainer and host of "Extreme Weight Loss."
Others like Harry Higa cheered runners on as they passed by his house. He didn't run this year, but he said the marathon also changed his life when he ran for the first time at 56 years old.
"I had a stroke. I was a couch potato, and told myself I have to do something to change my life, and I ran (the marathon) 10 straight times. I finished all of them," Higa said.
Some runners like Yuta Masaki didn’t prepare for the race at all.
“I went out all night and came straight here," Masaki said.
Kenyan Gilbert Chepkwony won the men’s race with a 2:18:46 time.
Ehitu Kiros of Ethiopia won the women’s race, clocking in 2:36:02.