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.
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!
Jun 13, 2026
Distance — 50 Mile
Type — Running
06:00
0.00
Jun 13, 2026
Distance — 50 Mile - Economy Package
Type — Running
06:30
0.00
Jun 13, 2026
Distance — 50 Mile - Virtual Race
Type — Running
06:30
0.00
Jun 13, 2026
Distance — 31 Miles
Type — Running
06:30
$108.00
Jun 13, 2026
Distance — 31.06 Miles
Type — Running
06:30
$108.00
Jun 13, 2026
Distance — 31 Miles
Type — Running
07:30
$108.00
Jun 13, 2026
Distance — 31 Miles
Type — Running
07:30
$77.00
Jun 13, 2026
Distance — 31 Miles
Type — Running
07:30
$53.00
Jun 13, 2026
Distance — 13.1 Miles
Type — Running
07:30
$78.00
Jun 13, 2026
Distance — 13.1 Miles
Type — Running
07:30
$63.00
Jun 13, 2026
Distance — 13.1 Miles
Type — Running
07:30
$53.00
Jun 13, 2026
Distance — 13.1 Miles
Type — Running
07:30
$78.00
Jun 13, 2026
Distance — 5 Miles
Type — Running
08:00
$48.00
Jun 13, 2026
Distance — 5 Miles
Type — Running
08:00
$38.00
Jun 13, 2026
Distance — 5 Miles
Type — Running
08:00
$53.00
Jun 13, 2026
Distance — 5 Miles
Type — Running
08:00
$48.00
Jun 13, 2026
Distance — Pacer
Type — Running
08:00
$0.00
These values represent the 3-year monthly averages for June in Laingsburg.
Learn more about the host city, Laingsburg.
Laingsburg is a city in Shiawassee County in the U.S. state of Michigan. The population was 1,424 at the 2020 census.
Read more launchRead what other athletes have to say about their experience at the Summer Trail Fest Ultra 50K, Half Marathon, & 5 Miler.
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