Colfax 10M
Race Day Weather
Comfortable temps, warming through the race
Mild 52°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 66°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Colfax 10M
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Colfax 10M race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
Race Info
The Urban 10 Miler is a point-to-point race that covers the final 10 miles of the Colfax Marathon course. It starts at the Rocky Mountain College of Art and Design, where runners join the marathon as it passes, and runs through Empower Field at Mile High and downtown Denver. The course continues past Confluence Park and along the Cherry Creek bike path, then follows 17th Avenue to finish in City Park.
