2023 Colorado Marathon

Register for 2023 Colorado Marathon

Date: May 7, 2023

Update 05/03/2023: The full marathon and the half marathon are now sold out! We do have a very small number of "Charity Fund" entries left for each distance. These are twice the price and all proceeds go to the local charities and non-profits that partner with the race. These entries are not guaranteed a medal, but will get one if we have enough.

Registration for the 5k and 10k are still open.


The Colorado Marathon is a gorgeous race held annually in Fort Collins, Colorado and includes 4 races (marathon, half-marathon, 10k, and 5k).

Price schedule:

Full Marathon Half Marathon 10k 5k
07.01.22 - 08.31.22 $115 $85 $35 $25
09.01.22 - 10.31.22 $120 $90 $40 $30
11.01.22 - 12.31.22 $125 $95 $45 $35
01.01.23 - 02.28.23 $135 $105 $50 $40
03.01.23 - 05.03.23 $290 (Charity Fund) $250 (Charity Fund) $55 $45
Race Weekend $290 (Charity Fund) $250 (Charity Fund) $60 $50


Once online registration closes, you will only be able to register or change races at the expo on Friday or Saturday of race weekend. If a race has reached capacity, there will be no new registration or changes to that distance.

The Colorado Marathon is an environmentally conscious event, thus we will only have online registration in an effort to reduce the environmental impact of paper waste and other resources. Thank you for your support!

Whether you're visiting for a day or a week, Fort Collins offers you plenty of choices for fun. We'll show you where to shop, where to hike, and where to dance. For more information about Fort Collins, Colorado, visit the Fort Collins Web Site.

Questions? comarathon.com/faq

Packet Pick Up Informationhttps://comarathon.wpengine.com/expo

Visit our webiste for more information comarathon.com or contact us at comarathon.com/contact