Boulder Rez Half Marathon
Race Day Weather
Comfortable temps, big temp swing
Starting at 60°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temps will climb significantly to 79°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
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Race Info
The Half Marathon is 13.1 miles on the Boulder Reservoir loop, run as two laps on the Saturday of race weekend. The course uses dirt roads and trails, starting and finishing by the reservoir parking lot, and turns around near Coot Lake on the northeast side. The route crosses the reservoir dam, heads north on 63rd Street and returns by way of Monarch Road, 55th Street and 51st Street. It is a flat course with views of the reservoir and the Rocky Mountains.
