Buttermilk Mountain Backyard Bash
Date
Sat, May 9, 2026, 7:00 AM EDTDistance
50 MileUltra
Quick take
A unique backyard ultra on coastal Maine trails, challenging you to run a loop each hour until you stop, all while supporting a local nonprofit.
Best for: cause-driven runners, runners who like a competitive edge
Race feel
- Fun
- Scenic
- Competitive
- Quirky
- For a Cause
Fun
Scenic
Competitive
Quirky
For a CauseExperience the unique Buttermilk Mountain Backyard Bash, an ultra-style event where you run a 4.17-mile loop each hour until you choose to stop or time runs out. Set on the scenic coastal Maine trails of Kate Furbish Preserve East, this race welcomes all experience levels, from seasoned ultra-runners aiming for 50 miles to casual trail enthusiasts enjoying a few loops. It's a day designed for personal challenge and outdoor enjoyment, with a portion of proceeds supporting the Preble Street nonprofit.
What to expect
- A backyard-style ultra where you complete a 4.17-mile loop hourly. If you don't finish within the hour, your race concludes.
- Run up to 50 miles on single and double track trails.
- Open to all experience levels, whether you aim for the full distance or just a few loops.
Standout details
- Backyard ultra format
- Scenic coastal Maine trails
- Supports Preble Street nonprofit
- Open to all experience levels
Ready to register?
Finish signup on the organizer site (check fees and dates there).
From the organizer
A backyard-style run-til-you-stop ultra race at Kate Furbish Preserve East in Brunswick, ME. Join us for a long, fun, hard day of running on coastal Maine trails on May 9, 2026! Sample some of the finest single and double track Buttermilk Mountain (elevation 121ft) has to offer.
Read full descriptionHide full description
Nutrition: not provided. PFAS: guaranteed. Stoke: High. What is a backyard race? Run a 4. 17 mile lap on the same course every hour on the hour. If you don't finish a loop within the hour, you are out of the race. 12 hour cutoff time for a maximum of 50 miles of running. The race is open to all experience levels! Run as many or a few loops as you like. Whether you're a lactate demolishing machine planning to finish the full 50, or a casual trail runner who wants to put in a few hours outside on a beautiful day, this event is for you. The race course is about a 12 minute drive from Bowdoin's campus. The $20 registration fee will go towards race expenses, and the rest will be donated to Preble Street nonprofit. If the registration fee poses a financial barrier to your participation, email tmooney@bowdoin. edu & fperez@bowdoin. edu. See you there.