Silverheels 100

The Silverheels 100 (Silverheels Trail Runs) takes place in Como, Colorado, on the high-altitude trails of Park County, on July 9–10, 2027. There is plenty to choose from, with six formats: 100 miles (160.9 km), 100K, 50 miles, 60K, 19 miles and 10 miles. The 100-mile, 100K and 50-mile start on July 9, and the 60K, 19-mile and 10-mile on July 10.

From a nature run to a very long ultra, every runner can find a fit. The courses alternate red-dirt tracks, wild forests and wide semi-arid open spaces characteristic of the Rockies. The altitude of Colorado's high plateau adds a very real difficulty that should not be underestimated in training, especially on the longer formats.