Bobby Livingston of Riverside, Ga. won the...

Bobby Livingston of Riverside, Ga. won the men’s kilometer race to earn a spot on the U.S. Olympic track cycling team at the track cycling trials and national championships at Houston.

Livingston, 23, was the lone Olympic qualifier at the Alkek Velodrome in west Houston.

Livingston won the three-lap, 1,000-kilometer race in 1 minute 6.38 seconds, beating Leonard Harvey Nitz, of Citrus Heights, Calif., who finished in 1:07.06. Rory O’Reilly of Santa Barbara was third in 1:07.39.

The kilometer event pits the riders in a race against the clock.

National championships were decided in the men’s tandem and women’s kilometer, both non-Olympic events.

Bart Bell of Houston and Tom Brinker of Washington, Mo., won the men’s national tandem championship; Mark Garrett of Alhambra and Arrue Marcello of Altadena were second.

Peggy Maass of Orange won the women’s kilometer race in 1:15.95 seconds, just ahead of Ellen Braun, of Arlington, Va., in 1:16.81.