Summer Trail Fest Ultra 50K, Half Marathon, & 5 Miler

This will be our fifth year for our Summer Trail Fest Ultra and Half Marathon. This race is the counterpart to the Winter Trail Fest Half Marathon and 5 Mile.  The two event medals will combine to make one giant medal!  STFU is a great first timer ultra with well stocked aid stations and is an amazingly well marked event.  The course is 90% gorgeous, well groomed trails and the race has extremely generous cutoff times with a 20 minute mile pace for the Ultra and 45 minute per mile pace for the half.   The course is also a spectacular race for the season veteran or the athlete looking to PR their trail Ultra or Half time.  Taking place in the center of southern Michigan at the gorgeous Sleepy Hollow State Park this event is convenient for both the East and West side of the State!

After the race stick around and cheer all the other athletes while we celebrate at the beach with a cook out afterparty!   New in 2026:  Spectators can purchase a cook out ticket in the STFU Store or participants can purchase them for their crew during registration.

If you are having a tough time getting motivated this year the Summer Trail Fest is the solution!  STFU and Run!  The Summer Trail Fest Ultra and Half Marathon is a great way to get yourself motivated for 2025.   Paired with our unique Winter Trail Fest half marathon and 5 mile medal it will be easy to say, WTF, I might as well STFU and Run in 2025!