Winter Trail Fest 13.1 and 5 Mile Eastside
Race the Trails at Island Lake on Saturday, February 14, 2026 in Brighton, MI!
Register NowJoin Trivium for WTF Eastside!
Some call it the Winter Trail Fest. Others just think, “What the F…?!”
Join us at Island Lake in Brighton, Michigan for a Half Marathon or 5 Mile run or ruck designed to embrace the messiest, most unpredictable conditions February has to offer. Snow? Ice? Slush? Perfect. You’ll earn every inch of your WTF hoodie, medal, and bragging rights.
Worried about the cold? Don’t be. The late morning start gives you time to sleep in and lets the temps rise just enough before you hit the trails.
This race is for those who crave a challenge. The gnarlier the conditions, the cooler the participants. WTF is all about embracing uncertainty, chasing adventure, and leaning into whatever the trail throws your way. Our ruck division is growing fast-ruckers, we see you.
Then, come back in June for the Summer Trail Fest Ultra (50K), Half Marathon, or 5 Mile to complete the series and claim your connecting STFU medal.
Summer Trail Fest Ultra (STFU)Half Marathon - Economy Package
5 Mile - Economy Package
What's Included with Registration?
- Custom WTF race hoodie
- WTF finisher medal
- Chip timing with live results
- Race day photos
- Post-race food and drinks
- Age group awards
- And more!
Not interested in all the swag? We also have an economy registration option where you can save and skip the swag!
2026 Designs Coming Soon
Hoodies
2026 Designs Coming Soon
WTF Age Group Awards...
Age group awards include 2025 WTF winter hats!
2024 Hat Shown Below
Connecting WTF and STFU Medals
If you join us in June at Sleepy Hollow for the Summer Trail Fest Ultra (STFU), Half Marathon, & 5 Mile your 2025 WTF and STFU finisher medals will connect! More details below.
STFU & Run
