Sun April 19, 2020 Fort Collins, CO US 80526 Directions
RaceJoy Ready

Horsetooth Half Marathon

8:30AM MDT - 2:00PM MDT
COVID-19: 2020 Race Cancellation Details

The Fort Collins Running Club appreciates everyone’s patience and understanding after the cancellation of the 2020 Horsetooth Half Marathon due to health & safety concerns associated with the COVID-19 pandemic. We are offering registered participants 3 options:

Donate my registration fee (no further action required)

Donate your registration fee to help support the Fort Collins community! Many non-profit organizations and school groups volunteer on race day each year to make sure the Horsetooth Half is a success. In turn, the Fort Collins Running Club provides them with funding support. These groups include Athletes in Tandem, Animal Friends Alliance, LC Dive Rescue, LC Food Bank, Project Self-Sufficiency, Teaching Tree, and many of FC’s middle/high school track and XC teams. The Fort Collins Running Club will use your donation to make sure we can donate to these partners this year despite the cancellation of the event.  Funds that are donated will also be used to support local community organizations working with senior and homeless populations, both of whom are particularly vulnerable to the impacts of COVID-19.

Defer My Registration to the 2021 Race (follow instructions below)

You can defer your registration to next year’s event to be held in April 2021.

Runners have from March 14-20 to request a free deferment.  After March 20, the a deferment fee of $25 will be charged. This option will be available until April 20.

To complete your deferral, follow these steps: 

- Log into RunSignup and go to your profile:
-  Under the Upcoming Events section, click MANAGE REGISTRATION next to your Horsetooth Half Registration
- Click the CONFIRM DEFERRAL button
- Here is a tutorial with more information: 

Go Virtual (closed April 1) 

Race Website

Additional race information can be found at

Fort Collins, CO
Holiday Twin Drive In
Fort Collins, CO US 80526

Welcome to the 47th running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from the location of Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the way you'll tackle the challenging hills of Centennial Drive along the shorelines of the shimmering Horsetooth Reservoir, before you head for the famed New Belgium Finish Line Party on the downhill Poudre River recreation trail. Whether an elite runner or a first time half marathoner, the Horsetooth Half Marathon offers a challenging yet surprisingly fast course, with a net loss in elevation.

Race Contact Info

If you have any questions about this race, click the button below.


Free Live Tracking and Progress Alerts on Race Day!
(Race organizers are providing this as an included service.)

Make sure you download the RaceJoy mobile app for live phone tracking at the Horsetooth Half Marathon.

Carry your phone and use RaceJoy to add to your race experience with these key features:

GPS Progress Alerts

  • Receive GPS-based progress alerts at mile points on the course for current pace and estimated finish time.
  • Post to your Facebook and Twitter walls.
  • Have friends and family track your performance.

Live GPS Tracking

  • Supporting spectators can track your blue dot moving along the course from home or at the race site.
  • NearMe proximity alerts notify spectators when you are drawing near.
  • Find each other using RaceJoy’s MeetUp tool.


  • Receive fun, motivational audio cheers from your supporting fans.
  • Start sending cheers to others doing the race at any time.

The Horsetooth Half Marathon is sponsoring RaceJoy to provide participants and spectators these features for free (normally a 99 cents upgrade fee for both the participant and spectator).

- Participant must carry phone
- No official race timing information is provided for this race in RaceJoy
2019 Race Video
2018 Race Video
2017 Race Video

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