

About the event
On May 31, 2025, the Spartan Beast takes participants on a grueling 21K journey filled with 30 obstacles at Fort Carson in Colorado Springs. Organized by Spartan Race Inc., the Beast features steep climbs, heavy carries, and technical challenges that demand strength, endurance, and mental grit. As the second-longest race of the Trifecta Weekend, it’s designed for those ready to push beyond their limits. Completing the Beast not only earns racers the third piece of their Spartan Trifecta but also a sense of accomplishment that’s hard to match.
Date:
Sat
May 31
2025
Location:
Distance:
Elevation profile:
Hilly
Website:
LinkElevation gain:
Number of participants:
Other distances for this race
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Colorado Springs Spartan Trifecta Weekend
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
Take your running to the next level
The Spartan Beast, scheduled for May 31, 2025, is a 21K obstacle course with 30 challenges designed to push endurance athletes to their limits. Hosted by Spartan Race Inc. at Fort Carson, this half-marathon-length race combines natural terrain with Spartan’s most iconic obstacles.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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