Ultramarathons in Colorado Springs
Discover ultramarathon and trail running races in Colorado Springs, Colorado. View course maps, elevation profiles, and explore race results.
Rattler Trail Race 25K
The Rattler Trail Race 25K covers 15.5 miles through Palmer Park in Colorado Springs this April, featuring nearly 1,900 feet of climbing on technical singletrack trails. Despite the modest elevation gain, the course demands attention as runners navigate sandstone formations and technical terrain at around 6,300-6,600 feet elevation. The route winds through one of Colorado Springs' premier trail systems, offering views of Pikes Peak and the city below as you move between exposed sandstone bluffs and more sheltered sections. Much of the course follows challenging singletrack that weaves around unique rock formations, with three aid stations positioned strategically along the way. April temperatures can vary significantly, and the technical nature of the trails means steady footing takes precedence over speed. This race suits runners comfortable with technical terrain who don't mind moderate altitude and potentially variable spring weather. The course rewards careful navigation over raw speed, making it ideal for trail runners who enjoy problem-solving their way through rocky, technical sections rather than grinding out big climbs.