Nielson Challenge
- Running
- 3 km
Register Saturday, Apr 25, 2026 for the Cheyenne Mountain Trail Race at Cheyenne Mountain State Park in Colorado Springs, CO. Choose from 50K, 25K, 7 Miler, and 4 Miler distances.
This race benefits Achilles Pikes Peak, a local nonprofit that helps athletes with disabilities to enjoy the trails and live rich, active lives.
Our 50K, 25K, 7M and 4M courses include some of the best trails on the Front Range. Runners will cross grassy meadows and pierce dark stands of timber beneath the granite face of iconic Cheyenne Mountain. These trails are very runnable with a couple of well-placed rocks to keep you awake.
Early packet pick-up: 2 p.m. to 6:30 p.m. Friday, April 24, at the Colorado Running Company.
Race-day packet pick-up: Begins at 7 a.m. in the parking lot at the Limekiln Trailhead at CMSP.
Everyone be ready to run at 8 a.m. Race-day packet pick-up starts at 7 a.m.
All runners receive a tech T-shirt and coffee mugs. Prize money for the top three men and women in the 50K and 25K. Medals for the top three in all races. Masters winners in each race also receive race medals.
Achilles athletes and their guides run for free. We have Achilles divisions for visually and mobility impaired runners, with recognition for the top three in the 50K, and 25K. Achilles runners will also be eligible for overall race awards. All disabled athletes must run with a guide.
Cheyenne Mountain State Park (410 JL Ranch Heights), approximately five miles south of downtown Colorado Springs on Hwy 115 (Nevada Ave. south).
| 50K Registration | $115.00 | View |
| 25K Registration | $100.00 | View |
| 7 Miler Registration | $55.00 | View |
| 4 Miler Registration | $50.00 | View |
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