Trail Running Calendar Wisconsin 2025-2026

The NK50k is an annual trail running event held in Greenbush, Wisconsin, featuring a scenic point-to-point course along the Northern Kettle Moraine Ice Age Trail. Participants can expect a challenging 50K run, with aid stations providing water, sports drinks, and snacks throughout the course. The ev..

Run the Trailbreaker is an annual running event in Waukesha, Wisconsin, established in 1993. This community tradition features a variety of race distances, including a Marathon, Half-Marathon, 10K, 5K, and a Kiddos 1K, catering to runners of all levels. The event is organized by the Park Foundation..

The Tour de Dodge is an annual trail running event organized by the Driftless Trail Collective, taking place at Governor Dodge State Park in Dodgeville, WI. Scheduled for April 19, 2025, the event features three race distances: 50K, 27K, and 10K, with varying elevation gains and aid stations along t..

NCTRaces: Bird Sanctuary is a running event taking place in the Douglas County Wildlife Area, known for its scenic brush prairie habitat. Participants can choose between two distances: a 10k and a 20k, both primarily on single-track trails. The 10k course features a mix of open prairie and wooded ar..

The Iola Spring Trail Race, scheduled for April 19, 2025, offers participants a chance to enjoy the scenic trails at the Iola Winter Sports Club in Iola, Wisconsin. The event features two race distances: a 5k course ideal for beginners and those reminiscing about cross country, and a more challengin..

The Chippewa Trail Races, taking place in New Auburn, Wisconsin, offers a variety of running events including a 50K, 50K Relay, 20 Miler, and 10K. Set against the scenic backdrop of the Ice Age Trail, the race features mostly single-track terrain with beautiful views of lakes and natural landmarks...

The Sunset Safari 10k Trail Run is part of the 12th Annual Moonlight Meltdown event, taking place in Belgium, WI. This hybrid/crossover trail run offers participants a scenic experience through Harrington Beach State Park, featuring a 1.2-mile section on a snowmobile trail. The event is organized by..

The WausaUltra event, taking place from May 2 to 5, 2025, in Wausau, WI, features three unique race formats: Limitless, Solo, and Double. The Limitless race challenges participants to run a 4.167-mile loop continuously until only one runner remains, while the Solo and Double options allow for one or..

The Donald Dash Trail Run is an exciting running event taking place in Mount Horeb, Wisconsin, featuring two race distances: a 5K and a 15K. Designed to cater to both novice and experienced runners, the course includes a mix of prairie, single track, and hilly terrain. The event aims to promote comm..

The Prickly Pine Jackpot 24 Hour Solo/Relay is an exciting endurance running event taking place in the scenic Kettle Moraine State Forest. Participants can choose from various race formats, including 6-hour, 12-hour, and 24-hour solo or relay options. The course features three unique loops of differ..

The Willow 20 Miler is an exciting trail running event taking place at Willow River State Park in Hudson, Wisconsin. Participants can choose between a challenging 20-mile course featuring two scenic loops or a 10-mile course that guides runners through a single loop of picturesque grass and gravel t..

The Popple Shoot Trail Races, organized by Big Slo Running, will take place in Minong, Wisconsin, on May 3, 2025. This event features four race distances: 10K, 25K, 62K, and 87K, all set on a mix of flat public ATV trails, single lane ATV trails, and county roads. The races aim to raise funds for mi..

The Kampf Ice Age Trail Celebration is a multi-day event taking place in Sturgeon Bay, Wisconsin, from May 16 to May 18, 2025. This celebration honors Jack and Sara Kampf's achievement of becoming "Thousand Milers" by hiking the entire Ice Age National Scenic Trail. Participants can join in various..

Rumble on the Ridge is an exciting endurance event inspired by the Backyard Ultra format, taking place on a scenic family dairy farm in Arena, Wisconsin. Participants will tackle a looped course, known as "The Drifty Mile," which ranges from 1 to 1.25 miles with a minimum elevation gain of 250 feet...

The Sugar Badger 50/50 and Half is a scenic running event taking place in Belleville, Wisconsin, featuring a 50-mile, 50K, and half marathon distance. The race is set on the flat and soft rail trails of the Badger State Trail and the Sugar River State Trail, offering picturesque views, trestle bridg..

The Tomorrow River Trail Half-Marathon is a scenic running event taking place in Plover, Wisconsin, with the course extending to Amherst, ending at Central Waters Brewing Co. Participants will enjoy over nine miles of the route along the picturesque Tomorrow River Trail. The event is scheduled for J..

Bong Backyards is an exciting trail and ultra running event scheduled for June 6, 2025, at the Richard Bong State Recreation Area in Brighton, WI. This event caters to runners of all skill levels, offering multiple race distances, including the challenging Backyard Ultra and the shorter Backyard 24...

The Thunderbird Warrior Challenge is a multi-distance trail running event taking place at Mt. Ashwabay Outdoor Recreation Area in Bayfield, Wisconsin. Scheduled for June 14, 2025, participants can choose from a 50K, 25K, 10K, or a 5K fun run that includes an obstacle course.The event features scenic..

The Kettle Moraine 100 Endurance Races is a premier ultra marathon event held annually in June, featuring a variety of race distances including 100 miles, 100 kilometers, 50 kilometers, and 38 miles. Established in 1996, this trail race showcases the scenic beauty of the Kettle Moraine region, with..

The Sunburst 12 Hour Trail Festival, taking place on June 21, 2025, at Sunburst Ski Area in Kewaskum, WI, offers an exciting challenge for runners. Participants can choose between 6-hour and 12-hour solo events or join a relay team of three. The course features a mix of climbs and scenic trails, wit..