He's up against Jamaican sprinter Usain Bolt.
He's won it four straight times.
Jimmy Jenson finished the race in just over 8 hours.
The Wings for Life Run is the latest groundbreaking event from Red Bull.
The two-time American U.S. in the steeplechase considers himself to be a man of the people.
They could be held in Portland, Ore.
The Baywatch star used Twitter to show off how hard it was.
Jonny Gomes rested the World Series trophy on the famous line.
They both ran Boston earlier this year.
Fernando Cabada and Lindsey Sherf were the top Americans.