Trail Running calendar near East Colorado Springs 2025-2026

Niwot's Challenge is a unique, invitation-only endurance event held annually near Sedalia, Colorado, along the South Platte River in the Front Range. Unlike typical races, it emphasizes self-reliance, navigation, and mental toughness over speed. The course is a secret, off-trail gauntlet requiring m..

The Greenland Trail Races, held annually in May at Greenland Open Space in Larkspur, Colorado, offer four race distances: 4 miles, 8 miles, 25K, and the 50K ultramarathon, known as Colorado's fastest 50K. The course features wide, smooth dirt trails through native grasslands, oak hills, and ponderos..

The Valkyrie Trail Race, held in Cheyenne Mountain State Park near Colorado Springs, Colorado, is a women-focused trail running event offering multiple distances ranging from 4 miles to 50 kilometers. The course begins on crushed limestone meadows before transitioning to singletrack trails ascending..

Endure Trail Runs, hosted by the Human Potential Running Series, is an annual event held at Mueller State Park in Divide, Colorado. The 6th edition, scheduled for May 16, 2026, features multiple race options including a unique 12-Hour timed event where runners draw colored balls to determine their n..

The Silverheels Trail Runs, hosted by the Human Potential Running Series, take place at the Como Roundhouse in Como, Colorado, at an average elevation above 10,000 feet. This scenic event offers multiple race distances including 10-Mile, 19-Mile, 60k, 50-Mile, 100k, and 100-Mile options. The course..