Colorado Marathon
The Lowdown
The Colorado Marathon in Fort Collins is a scenic Spring marathon with courses through Poudre Canyon and into downtown Fort Collins. It also includes a half-marathon, 10K, and 5K. Many runners target this downhill course for fast times and Boston qualifiers.
Race Day
Weather Forecast
Elevation
Terrain Profile
Relatively flat course
Participants
Field Size
Medium-sized race
Crowd Rating
Spectator Support
Good crowd energy
This race qualifies for the Boston Marathon
Race Weekend
Other distances available
Notable Landmarks
Poudre River Canyon, Old Town Fort Collins, Cache la Poudre River scenic stretches.
Fort Collins, CO, United States
US
Based on nearby accommodations
- Minimum age 18 on race day to register for the full marathon
- Runners aged 16–17 may participate in the full marathon only with a signed parent/guardian consent form and race director approval
- Valid government-issued photo ID required at packet pickup
- Official race bib must be worn and visible at all times; bib transfers are prohibited unless approved in writing by race management prior to packet pickup
- Race cutoff time 6 hours 30 minutes from gun time (participants not meeting pace may be removed from course)
- Wheelchair and handcycle athletes must register in the appropriate division and notify race organizers in advance
- No pets or baby strollers allowed on the marathon course
- Medical clearance recommended for participants with pre-existing conditions; carry personal medical information on race day
- No race-day refunds; deferral, bib transfer, or charity options handled per race policy and deadlines posted on the official website
- All participants must follow race rules, directions from officials and volunteers, and local/state laws while on course
- Valid ID at packet pickup
- Online registration via RunSignUp.
Cancellation & Refunds
Policy details
No refunds or transfers; entries are non-transferable.
Packet pickup is required at the Pre-Race Expo unless race-morning pickup is purchased.
Community
Stories, tips, and race-day snapshots from runners who have tackled this course.
Community Reviews
Learn from fellow runners and share insights that will help the next person toe the line.