Kristin Armstrong is racing for her third straight gold medal in the Olympic time trial at 6:06 a.m. Mountain time.
[Related: “What would the Olympics be without a medal?”]
The entire 18.5-mile competition, with riders going off one at a time in a race against the clock, will last less than 90 minutes. As the defending champion, Armstrong is the final rider in the field.
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[Related: Armstrong seeks third Olympic gold medal “because I can.”]
Armstrong did not finish Sunday’s road race, won by Dutch rider Anna van der Breggen, who is a gold medal contender Wednesday.