Trail Running calendar near Nashotah 2025-2026

Event overview The 50K MASHUP SLAM is a series of trail races in the Midwest based on the 50K distance. The series includes multiple events across the year, begins with the Frozen Gnome 50K in January and concludes in November with the Mine..

Whitewalker Ultra 100k is a self-supported ultramarathon held in Palmyra, Wisconsin, starting at Emma Carlin Trailhead. The course comprises two 50k loops, first looping west on the Ice Age Trail to Whitewater and back, followed by a second..

The Frozen Assets 5K Run/Walk is a unique winter event held in Madison, Wisconsin, where participants run or walk entirely on the frozen surface of Lake Mendota. The 5K course offers scenic views of downtown Madison and the University of Wi..

ARKTOS : February 28 to March 1, 2026 ARKTOS is a winter trail ultra held in Dousman, Wisconsin (Southern Kettle Moraine Forest). The event offers timed-loop formats in three durations. The race is open to solo runners and relay teams of up..

Trailbreaker : March 29, 2026, Waukesha, WI The Trailbreaker is scheduled for March 29, 2026, in Waukesha, WI, with the main venue at the Schuetze Recreation Center / Frame Park Baseball Stadium. The event has been hosted by the Park Founda..

Event overview NK50k takes place on April 11, 2026 in Greenbush, WI, presented as the 13th Annual-ish edition. The event offers multiple distances: 50K - point-to-point on the Northern Kettle Moraine Ice Age Trail 25K - separate start at C..

Celebrate Earth Day on April 18 in Crystal Lake with looped trail races of 50K, 15 mile, and 5 mile on rolling single track. Friendly aid station, scenic pond start, and relaxed festival vibe for trail runners of all levels.

The Sunset Safari 10k Trail Run is part of the annual Moonlight Meltdown event held in Belgium, Wisconsin. This hybrid trail run features a 6.2-mile course combining a 5-mile road segment with a 1.2-mile trail section through Harrington Bea..

Childish Nonsense brings looped ultrarunning to Deer Grove Forest Preserve in Palatine IL with races from 10K to 50 mile. Expect mellow trails, multiple laps with a main aid station about every 5.5 miles, and a welcoming, inclusive communit..

The Prickly Pine Jackpot 24 Hour Solo/Relay is an endurance running event held in the scenic Kettle Moraine State Forest near Dousman, Wisconsin. Participants can choose from multiple race options including 6-hour, 12-hour, and 24-hour solo..

The Donald Dash Trail Run is a popular trail running event held at Donald County Park in Mount Horeb, Wisconsin. It offers two race distances: a 5K for beginners and a more challenging 15K for experienced runners. The course features divers..

Rumble on the Ridge is a Last Person Standing loop race at a private Arena farm featuring a rugged 1 to 1.25 mile loop with big climbs. Run a lap every 20 minutes until one runner remains, with crew space, hot food and Saturday camping.

Run 50 mile, 50K, or half marathon on scenic flat rail trails in Belleville on May 23, 2026. Enjoy trestle bridges, a quarter mile tunnel, generous cutoffs and post race pizza, beer and swag for finishers.

Explore the rugged trails of Kettle Moraine in LaGrange WI, with ultra options from the 38 Miler up to the 100 Miler, plus relays and a 50K. The mostly trail route includes 65 miles on the Ice Age Trail and the 100 Miler is a Western States..

Run the Whitewater Trail Challenge on June 20, 2026 in Whitewater WI with 10K, half marathon and 50K options along the scenic Ice Age Trail at Rice Lake. Rolling hills and technical footing create a rewarding summer trail test.

Cliff Runner 10K is a challenging 10-kilometer trail race held in Sherwood, Wisconsin at High Cliff State Park. The course takes runners along mostly single-track trails through the park’s rugged terrain, featuring rocks, roots, boulders an..

Push your limits in Belleville WI Sept 18 to 20 with a weekend of timed endurance races on an out and back route to Dot's Tavern. Choose Last Dot Standing, 24 or 48 hour challenges and chase buckle distances up to 200 miles.