Webb, 31, retired from track and field this past winter.

Only five months after announcing his retirement from track and field, Alan Webb can seems to be settling well into his new sport—triathlon. The former track star, who holds the American record for the mile (3:46.91 in 2007), won this morning’s Life Time Marquee sprint triathlon in Tempe, Ariz.

“That hurt,” Webb gasped at the finish line, “but I feel awesome.”

In his first open triathlon (he debuted in the sport in a relay in March), Webb completed the 750-meter swim in 10:56, exiting the water with training partner and USA Triathlon Recruit Chad Hall. The two would play a game of cat and mouse on the bike, with Hall besting Webb’s 14-mile bike split of 35:23 by only a few seconds. Webb, however, caught Hall in the early meters of the run and exploded through the 3.1-mile run course in 15:54. Webb won with a total time of 1:03:01.

For More: Triathlete.com