Summer Trail Fest Ultra and Half Marathon 50k, 13.1, 5 Mile

Race Details

June 14, 2025
Laingsburg
Michigan
50K
13.1M
5M
STFU-2025-logo-cropped-transparent-background

Annual STFU at Sleepy Hollow State Park!

Taking place in the middle of Michigan, Summer Trail Fest Ultra and Half Marathon (STFU) is convenient for those on the east and west side of the state. With well-groomed trails and extremely generous cutoff times (20 min/mile for the Ultra and 45 min/mile for the Half), this is a spectacular race for beginners, season veterans, or athletes looking for a personal best. When you cross the finish line, celebrate at the beach with our post-race STFU barbecue party while cheering for participants on the course!

Share This Race!

More Races

fire-trail-running-festival-logo
Fire Trail Running Festival
50.0K
25.0K
8.0K
June 14, 2025
Spring Branch
, Texas
noche-trail-runs-logo
Noche Trail Runs
13.0M
40.0M
27.0M
13.1M
July 12, 2025
Junction
, Texas
IMG_3997
Thunder Chicken Squatch
17M
6M
August 10, 2025
Branchville
, New Jersey

Join Now

Team Trail Sisters

Find a Coach

New Castle, 
Colorado

Watch Films

Frosty-min

Frosty

Anna Frost

Claim Race

Heyo Race Director!

Once you’ve claimed your race allow 24-72 hours for our site admin to update the listing and transfer ownership to you. Once complete, you will receive an email notification and will be able to edit the race from your dashboard. 

Thank you!

Claiming races that are not yours will result in immediate termination of your account. 

Race Director Login