Register for the Colorado Marathon

Lace up for Colorado’s fastest marathon — secure your spot today!

The Colorado Marathon: Where Your Adventure Awaits

Coming soon! Register for the Colorado Marathon in Fort Collins on Sunday, May 4, 2025, and join the ranks of running enthusiasts for an unforgettable race day that marries the thrill of competition with the awe of natural beauty. With two downhill races (Full Marathon and Half-Marathon) stretching through the majestic hills of the Poudre Canyon, and two races that pass through the breathtaking natural landscapes of Fort Collins (10k and 5k), the Colorado Marathon offers more than just a race — it offers a thrilling experience for runners of all ages, levels, and abilities.

Last year’s race sold out, so be quick — register today!

Registration Details & Pricing

Explore our registration details and pricing, and register early to secure the best rates. Need to change your distance? Register with confidence! You can switch to a shorter or longer distance at any time before race day. Log in to your EnMotive account and select a new race category for a $20 change fee. You can register or change races at the health and fitness expo on the Friday or Saturday of race weekend as long as spots are available. Please note: there are no refunds, transfers, or deferrals.

Check out registration pricing and price increase dates below, and register today to secure your spot!

Happy female marathoner crossing the finish line

Full Marathon

  • Early Bird Special (07/01/24 – 08/31/24): $120
  • 09/01/24 – 10/31/24: $130
  • 11/01/24 – 12/31/24: $140
  • 01/01/25 – 02/28/25: $160
  • 03/01/25 – 04/30/25: $180
  • Race Week (if not sold out): $200
  • Charity Fund: $360

Charity Fund: Once the standard entries are sold out, we reserve a limited number of Charity Fund Entries. These are double the registration price, with all proceeds benefiting local charities and non-profits involved in the race.

Male half-marathon finisher celebrating his victory

Half-Marathon

  • Early Bird Special (07/01/24 – 08/31/24): $90
  • 09/01/24 – 10/31/24: $100
  • 11/01/24 – 12/31/24: $110
  • 01/01/25 – 02/28/25: $130
  • 03/01/25 – 04/30/25: $150
  • Race Week (if not sold out): $170
  • Charity Fund: $300

Charity Fund: Once the standard entries are sold out, we reserve a limited number of Charity Fund Entries. These are double the registration price, with all proceeds benefiting local charities and non-profits involved in the race.

Male 10k finisher giving high-fives at the finish line

10k

  • Early Bird Special (07/01/24 – 08/31/24): $40
  • 09/01/24 – 10/31/24: $45
  • 11/01/24 – 12/31/24: $50
  • 01/01/25 – 02/28/25: $55
  • 03/01/25 – 04/30/25: $60
  • Race Week: $70
Two happy female 5k runners celebrating

5k

  • Early Bird Special (07/01/24 – 08/31/24): $30
  • 09/01/24 – 10/31/24: $35
  • 11/01/24 – 12/31/24: $40
  • 01/01/25 – 02/28/25: $45
  • 03/01/25 – 04/30/25: $50
  • Race Week: $60
Register for the Colorado Marathon and race through the beautiful Poudre Canyon

Why Register for the Colorado Marathon?

  • Scenic Beauty: Tackle Colorado’s fastest race while absorbing the stunning views of the Poudre Canyon in the majestic Rocky Mountains of Northern Colorado.
  • A Race for Every Runner: Our race features a full marathon, half-marathon, and 10k and 5k distances. Which challenge are you ready to tackle?
  • Boston Qualifier: As Colorado’s fastest downhill race, about 16-18% of our yearly participants qualify for the Boston Marathon.
  • Beyond Just a Marathon: Are you a “50 State” runner looking for a unique, mountainous marathon experience outside the standard urban race? We have just what you’re looking for!
  • Celebrate in Style: Cross the finish line and celebrate your achievement with fellow participants at our legendary post-race party in Downtown Fort Collins.

How to Register for the Colorado Marathon

The Colorado Marathon is passionate about being environmentally conscious. To support this effort, we exclusively offer online registration. This decision helps us reduce paper waste and conserve resources, making our race as green as our beautiful course.

Registering for the Colorado Marathon is quick and easy — simply click on the registration link to access race registration through EnMotive. Select your distance, register, and voila! We’ll email you all the race details for this year’s race so you’re ready for race day. In the meantime, explore our race details to learn about busing, parking, aid station locations, and more!

Smiling female runner shows how easy it is to register for the Colorado Marathon

Secure Your Spot — Register for the Colorado Marathon Today!

Last year’s race sold out, so we recommend registering as soon as possible to secure your spot in the Marathon, Half-Marathon, 10k, or 5k. Don’t miss your chance to run Colorado’s fastest marathon! We’ll see you at the starting line!

Our Sponsors

Interested in Sponsorship opportunities with the Colorado Marathon? Click Here