Denver Colfax Marathon Denver, CO May 15 16, 2027
External Event
Distance
3.1–26.2 mi
Pace
All paces welcome
Terrain
Road
Difficulty
Challenging
About this run
Experience the Denver Colfax Marathon in Denver, CO, on May 16-17, 2026. This event features multiple distances, ranging from a 5K to a full marathon. Find more information and register via the official website.
What to expect
- 5K race option
- Marathon option
- Multiple distances available
- Event details on the official site
Typical conditions
For events around May 2027 in Denver, CO, United States: Typical spring conditions in this region — mornings can still be cool; confirm start-time guidance on the official page.
How to prepare
Marathon training typically spans 12–16 weeks with a progressive long run and recovery weeks. Do not invent a course strategy here — check the official site for start waves, cutoffs, and gear rules.
Best marathons to run in 2026Getting there
This event is listed in Denver, CO, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Denver
