Trail Running calendar near Crystal Lake 2025-2026

The Earth Day 50k is a trail running event held in Crystal Lake, Illinois, at Veterans Acres Park. It offers three race distances: 50 kilometers, 15 miles, and 5 miles, all starting together on a 5-mile loop course featuring single track trails and rolling hills. The race emphasizes environmental re..

Childish Nonsense is a trail running event held in Palatine, Illinois, at Deer Grove Forest Preserve West. It offers multiple distances: 10K, 25K, 50K, and 50 miles, with courses consisting of laps on a mostly wide, non-technical trail. Runners encounter a single aid station at the start/finish area..

The Prickly Pine Jackpot 24 Hour will take place in Dousman from Saturday 2 May 2026 to Sunday 3 May 2026. You can run between 6 and 24 kilometers.

The F^3 Cap Sauers Trail Marathon & 10 Mile is a trail running event held at Teason’s Woods in Palos Hills, Illinois. The marathon features a challenging course on the Sag Valley Trail, consisting of wide horse trails with minimal technical terrain but significant elevation—1050 ft for the marathon..

The Sugar Badger 50/50 and Half Marathon is a scenic trail running event held in Belleville, Wisconsin, featuring distances of 50 miles, 50 kilometers, and a half marathon. The course follows the flat, soft rail trails of the Badger State Trail and Sugar River State Trail, showcasing trestle bridges..

Kettle Moraine is a renowned ultra marathon held in LaGrange, Wisconsin, featuring multiple race distances including a 100-mile, 100K, 50K, 38-mile, and a 100-mile relay. Established in 1996, it is one of the oldest 100-mile races in the U.S. The course is 100% trail, with about 65 miles on the scen..