Summer Trail Fest Ultra 50K, Half Marathon, and 5 Mile – June 13, 2026 Summer Trail Fest Ultra (STFU) is back for its fifth year on Saturday, June 13, 2026, at Sleepy Hollow State Park in Laingsburg, Michigan. This summer trail race is the perfect mix of beginner-friendly and PR-worthy, with smooth, well-marked singletrack and generous cutoffs that make it accessible for both new and experienced trail runners. Whether you’re ready for your first 50K ultramarathon, looking to nail a faster half marathon, or want to test yourself on the 5 mile trail race, STFU delivers a one-of-a-kind Michigan trail running experience. The course features about 90% well-groomed trails with minimal technical terrain, making it an ideal choice for anyone stepping up to longer trail distances. With 20:00/mile cutoffs for the 50K and 45:00/mile cutoffs for the Half Marathon, you’ll have plenty of time to finish strong. Aid stations are well-stocked with water, electrolytes, gels, and real food options, so you can run without a crew and still be fully supported. After the finish line, the fun doesn’t stop. Stick around for a post-race cookout and BBQ featuring burgers, hot dogs, sides, and plenty of trail camaraderie. In 2026, spectators can even purchase picnic tickets, so your family and friends can join the celebration too. Even better? STFU is the summer counterpart to the February Winter Trail Fest (WTF) Half Marathon & 5 Mile in Brighton and Middleville. Each year, the STFU and WTF medals are designed to magnetically connect into one giant finisher medal. You can also register through the WTF + STFU bundle to save 15% off each race while guaranteeing your spot in both events. Why Run STFU? Beginner-friendly trail race with smooth, scenic singletrack Distances for everyone: 50K, Half Marathon, and 5 Mile (run or ruck) Generous cutoff times (20:00/mile for 50K, 45:00/mile for Half) Well-stocked aid stations so you can run without a crew Excessively well-marked course that keeps navigation stress-free Post-race cookout and BBQ celebration at the finish line Medals that magnetically connect with Winter Trail Fest for a full-season accomplishment Central Michigan location, convenient to both east and west sides of the state Summer Trail Fest Ultra, Half Marathon, and 5 Mile is more than just a race—it’s a celebration of summer trails, community, and the joy of finishing something big. Register today and get ready to STFU and Run on June 13, 2026!
Summer Trail Fest Ultra and Half Marathon
7:30 AM
Trail
$55+
Laingsburg
100-500
Some Hills
Park Run
The STFU Half Marathon is an awesome one loop half marathon at Sleepy Hollow State Park. The course is almost exclusively single track, and only 490 ft of elevation gain throughout. The trails are usually in superb condition, and make for a great early summer half marathon course. The course is well marked with turn signs at every turn, hanging tape every .1 miles and surveyor flags at all open fields. The race has amazing aid stations that are well stocked and easy access. Make this your summer half marathon!
This is a course map on Strava. You can view the course and elevation, as well as download a GPX file from this link to use with your running watch.
