When
May 16, 2027
Starts at 6:00am MDT
Weather
Last Year's Race Weather
☀️ Clear
Registration
Open Now
Opened August 1, 2026 · 12:00 AM MDT, Until Full
Website
Official website →
Event Details
The Denver Colfax Marathon is Denver's only marathon, offering a unique urban tour of the city, including a run through Empower Field at Mile High twice. The 2027 edition is scheduled for May 16, 2027.
Event type
Full-Marathon
Distance
42.2 km
Surface
Road
Registration opens
August 1, 2026 · 12:00 AM MDT, Until Full
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