Trail Running calendar near Wausau 2025-2026

The Underdown Trail Races, held in Merrill, Wisconsin, offer a challenging trail running experience on the rugged Underdown Trail system shaped by ancient glaciers. The event features distances of 60k, marathon, and half marathon, with courses primarily on singletrack trails that include steep climb..

The Midwest States 100 is an ultramarathon event held in Westboro, Wisconsin, within the scenic Chequamegon-Nicolet National Forest. The race features three distances: 100 miles, 100 kilometers, and 50 kilometers, all primarily run on the iconic Ice Age Trail, a 1,000-mile National Scenic Trail know..

The Ironbull Rib Mountain Trail Races take place in Wausau, Wisconsin, within the scenic Rib Mountain State Park. The event offers three distances: a challenging 50k consisting of three loops with over 7,000 feet of elevation gain, a 25k covering 1.5 loops, and a 15k single loop. The course features..

The Golden Pines Trail Run at Machickanee, held in Abrams, Wisconsin, offers an evening trail running and hiking experience through the scenic Machickanee Hiking and Ski Trails. Participants can choose from 7K or 11K distances, with options for canicross events where runners hike or run with their l..

The Black River Trail Classic, held in Millston, Wisconsin, takes place in the scenic Black River State Forest. This event offers multiple race distances including 85K, 50K, 25K, and 10K, catering to a variety of runners. Participants enjoy well-marked courses featuring beautiful ridge views and vib..

The Mosquito Hill Endurance Run is a trail running event held at Mosquito Hill Nature Center in New London, Wisconsin. Participants run or walk on a 3.4-mile loop course featuring wetlands, prairies, forests, and a climb to the top of Mosquito Hill, with about 400 feet of elevation gain per loop. Th..

The Buck Rut Run is a 5K trail running event held at Minocqua Winter Park in Minocqua, Wisconsin. Celebrating its 30th edition, the race takes advantage of the park's trail system, offering participants a scenic and challenging course. Registration is available online with tiered pricing and include..

The Tuscobia Winter Ultra is a challenging human-powered winter endurance event held on the Tuscobia and Wild Rivers State Trails in Northern Wisconsin. Participants can choose between an 80-mile one-way course or a 160-mile out-and-back route, with the longer distance serving as a qualifier for the..

The Phillips Flurry is an annual winter sporting event held in Phillips, Wisconsin, featuring 5K and 10K snowshoe races, runs, and walks. It serves as the venue for the Wisconsin State Snowshoe Championships, attracting participants who enjoy snow-covered trails in a scenic forest setting. The event..

The WausaUltra event, held in Wausau, Wisconsin at Sylvan Park, offers three race formats: Limitless, Double, and Solo. The course is a scenic 4.167-mile mostly trail loop featuring hills, forested single tracks, creek crossings, and views over a valley. The Limitless race is a "last runner standing..