Welcome to the 48th running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from 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 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.

November 14, 2021
Fort Collins
The number for participants for the whole event is capped to 2500.


Horsetooth Half Marathon
November 14, 2021 (Sunday) - 08:30
21.097 kilometers
917 feet
1,154 feet
5 Aid Stations
Cut off: 12:30 hours
Solo After Race Meal Expo Live tracking of runners Pacemakers Bag Storage Finishers Gift Medals for finishers Parking Toilets Electronic timing Finishers T-Shirt Medical Services Photos translation missing: en.services.transport_to_start Certified course Hilly Mountain Range Point to Point Road Timed

The Horsetooth Half Marathon begins at CSU’s Hughes Stadium and travels west and south on County Road 42C (the road running along the south side of the stadium parking lot). Proceeding on County Road 42C, then proceeding north on Centennial Drive (County Road 23), the course follows the east side of the reservoir and then continues north to Bingham Hill Road.

The number for participants for the race is capped to 2500.


Nov 14 2021 : Partly cloudy throughout the day.
1.5°C - 20.3°C (34.7°F - 68.5°F)

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The information about this event is based on data from the official website or may be provided by the organiser. Before booking flights or accommodation check the event's website and social media. If this listing is not up-to-date, please let us know at [email protected]
Last checked on 2021-11-10


From Around the web

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Horsetooth Half Marathon
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News Results

Results 2019: Horsetooth Half Marathon

DOMINIC KORIR grinded past more than 1700 runners to win in 01:07:33. He bested HILLARY CHESIRE who crossed the finish line 42 seconds behind him. KURT ROESER (01:08:28) made notched third place. For the women, IVY KIBET scored victory with a time of 01:15:28 . GRACE KAHURA earned runner-up honours with a time of 01:23:10. The third place went to ANNMARIE
Horsetooth Half Marathon
Jean-Loup Fenaux | 16 Apr 2019 13:09

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