DALLAS (CBS) – A dramatic ending to a woman’s marathon race in Dallas over the weekend.

Chandler Self was way out in front in the BMW Dallas Marathon.

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But when she was about 20 meters from the finish line, her legs started giving out.

That’s when 17-year-old Ariana Luterman saw what was happening and jumped into action.

“I picked her up, and I tried as hard as I could to carry her over to the finish line but she did it all by herself at the end. ” said Luterman. “That grit and determination it takes to get there, it was pretty amazing.”

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Luterman helped Self across the finish line, and Self won the race.

She is the first woman to run an unofficial time of 2 hours, 53 minutes and 58 seconds.

She was treated after the race and is recovering.