"I’m more just mad at myself for getting too caught up in the record and not caught up enough in the sprint finish," the former BYU runner said about taking second in the Houston Half.

In a thrilling, nail-biting finish, Olympic marathoner Conner Mantz shattered the long-standing American record in the half marathon, running 59:17 Sunday morning in Houston.

Senayet Getachew, 19, of Ethiopia won the Houston Aramco Half Marathon by four seconds over Weini Kelati of the U.S. Kelati set the U.S. record.

Weini Kelati finished second at the Houston Half Marathon in 1:06:09, 16 seconds faster than the time she ran at the race last year.