BOISE -- Idaho professional cyclist Kristin Armstrong won the Amgen Tour of California women's time trial, beating the second-place rider by more than a minute.
Armstrong won Thursday's Bakersfield time trial, covering the 18 mile course in 39 minutes, 59 seconds, for an average speed of 27 miles per hour.
Alison Powers, a former U.S. national champion time trialist, was second in 41 minutes, 23 seconds, while Jade Wilcoxson was third.
Boise-based Armstrong, the time trial gold medalist at the 2008 Beijing Olympics, is among several American riders hoping to be on the U.S. cycling team for the 2012 London Olympics.
Others include Amber Neben of Forest Grove, Calif., and Evelyn Stevens of Acton, Mass.
They're due to ride head-to-head in Idaho when the Exergy Tour starts near Boise on May 24.