Trail Running calendar near Grass Lake 2025-2026

The Huron 100 is an endurance running event held in Grass Lake, Michigan, featuring a 100-mile race and a 50-mile option called the Waterloo-Pinckney 50. Both are point-to-point courses traversing the Huron River Watershed, covering multiple state recreation areas, metroparks, and a county park. The..

The Summer Trail Fest Ultra (STFU) is an annual trail running event held at Sleepy Hollow State Park in Laingsburg, Michigan. It features a 50K ultra, half marathon, and 5-mile race on 90% well-groomed, scenic trails. The course is mostly flat and heavily marked, with frequent aid stations, making i..

The Jordan Lake Trail Run/Walk is a scenic running event held in Lake Odessa, Michigan, starting at Lakewood Middle School. The course winds through the picturesque Jordan Lake Trail and loops back to the school, offering participants a beautiful country view. The event features a 5K distance suitab..

The Ionia Free Fair 5K is a professionally chip-timed running event held in Ionia, Michigan. The race course features scenic routes along Ionia's River Trails and loops around the Fairgrounds, finishing in the charming red brick downtown area. The event offers a competitive atmosphere with awards pr..

The Ode to Laz Michigan Backyard Ultra is a unique endurance running event held at Holly State Recreation Area in Holly, Michigan. Participants run a 4.167-mile trail loop featuring about 350 feet of climbing, combining technical single track, moderate hiking paths, and some pavement. The race follo..

The Tails & Trails 5K is an exciting running event scheduled for August 17, 2025, in Clarkston, MI. This family-friendly race features a Cat Walk 1K, welcoming both dogs and cats, followed by a 5K run that takes participants through the scenic trails of Independence Oaks. The event aims to raise fun..

Run Woodstock is a unique trail running festival held on a 140-acre site in Gregory, Michigan, featuring century-old white pines, old growth forests, fields, and a beach. The event offers a variety of distances including 1 mile, 5 miles, half marathon, marathon, 50K, 50 miles, 100K, and 100 miles, w..

The Oak Openings Stampede is a running event taking place at Oak Openings Metropark in Whitehouse, Ohio. Participants can choose between a 25K run and a 5K run or walk, with the course featuring scenic wooded trails that traverse hardwood and pine forests, open prairies, and stream sides. This event..

The Heritage 13.1 & 50K Trail Run is an annual event held at Heritage Park in Adrian, Michigan, showcasing the beauty of fall colors. Participants can choose between a half marathon (13.1 miles) and a 50K ultramarathon, both featuring scenic trails with minimal pavement. The event emphasizes inclusi..

The Bear Lake Ultra is a unique 24-hour running event taking place at Bear Lake Camp in Lapeer, Michigan. Participants can run or walk as many loops as they desire on a scenic 3.1-mile course featuring rolling hills and various terrains. Registration includes a hooded sweatshirt, a Friday night dinn..

The Crooked Loops Trail Run, scheduled for October 4, 2025, in Clarkston, Michigan, offers participants a scenic experience through the vibrant fall colors of Independence Oaks. Runners can choose from three race distances: a 2.5-mile loop around Crooked Lake, a 5.5-mile route that includes an addit..

The Yankee Springs Fall Festival, held annually at Deep Lake Campground in Middleville, Michigan, offers trail running distances of approximately 10K, 25K, and 50K. The 10K and 25K courses feature scenic rolling single-track trails, with the 50K consisting of two laps of the 25K loop. Participants r..

The Over The Creek and Through the Woods Trail Run is a scenic event held at Pierce Cedar Creek Institute in Hastings, Michigan. Participants can choose between a 1-mile fun run and a 5K trail race, both set amidst the institute's beautiful 850-acre landscape. The event aims to promote outdoor activ..

The Meecheway 5K Trail Run - Color Run Edition, scheduled for October 11, 2025, in Defiance, Ohio, is a vibrant community event aimed at supporting Scouting programs. This second annual Color Run invites participants to run or walk while enjoying a fun, colorful experience. All proceeds will benefit..

The Timber Trails 5K Run/Walk is an annual event hosted by Eaton County Parks and Recreation, taking place at Fitzgerald Park in Grand Ledge, Michigan. This scenic race features a slightly challenging course that includes grass, gravel roads, and wooded trails, making it a perfect way to enjoy a fal..

The 13 Ghosts Half Marathon, 13K, and 4 Mile Trail Run is a thrilling running event scheduled for October 12, 2025, at Addison Oaks County Park in Leonard, Michigan. Participants can choose from three distances: a half marathon, a 13K, or a 4-mile run/walk, all set within a scenic park environment f..

The Fallasburg 5K Trail Race will take place in Lowell on Sunday 12 October 2025.

The Will Run for Coffee/Beer 5k is a unique running event held in Owosso, Michigan, starting at the Fitness Coliseum. Participants can choose between two 5k races—one themed around coffee and the other around beer—or a shorter 1.5-mile walk suitable for all ages, dogs, and strollers. The 5k course f..

Dragons in the Woods is an exciting 5k run/walk event taking place in Holt, Michigan, on the scenic trails of Birchfield Park. Celebrating its 12th season, this event welcomes both seasoned runners and families looking to enjoy a day outdoors. Proceeds from the race benefit Island City Academy, a lo..

The Legend Trail Run is an exciting running event taking place at Sleepy Hollow State Park, featuring three race distances: 5 miles, 10 miles, and a half marathon (13.1 miles). Set in a picturesque landscape of 2,600 acres of hardwood forest and grasslands, the course offers a mostly grass-covered r..