Running University of Utah student Krah finishes in 2:26.45.

Salt Lake City runner Nathan Krah won the San Francisco Marathon on Sunday, according to unofficial results.

Krah, a 26-year-old Ph.D. student in human genetics at the University of Utah, was the mens winner, finishing the hilly 26.2-mile course that wound through the city and across the Golden Gate Bridge in 2 hours 26 minutes and 45 seconds, according to preliminary results.

"Even coming from a mountainous area, this was still really hard," Krah said in a statement after winning. "It was just an endless assault of hills."

Devon Crosby-Helms, 30, of San Anselmo, Calif., finished first among the women with a time of 2 hours 44 minutes 5 seconds, according to results.

"That was extremely satisfying," Crosby-Helms said in a statement. "This was my third time racing here, and I really felt I had a good chance to win."

More than 7,000 runners took part in this years marathon, alongside 18,000 people who participated in two separate half-marathons, a 5K run and a Munchkins Kids Fun Run, organizers said.

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Running: Salt Lake City’s Nathan Krah wins San Francisco Marathon