4.167 miles4.167 milesCompleted
2025 Broken Brain Backyard
Craig, Colorado
$75
Standard
About This Race
Broken Brain Backyard Ultra
Run the Broken Brain Backyard ultra and run 4.167 miles every hour on the hour for as long as you can. Start time is 8:00 am MST (Do not come late or you will not be able to start). One lap every hour on the hour until there is only one person left! This race is capped to 75 entrants.
Broken Brain Citizen’s Race
Or join us for the fun (and much saner) Broken Brain Citizen’s Race and run, walk, skip, hop 4.167 miles with your friends and family (sorry, no dogs or bikes). The Citizen’s race starts at 8:15 am and you have as long as you need to complete the 4.167 mile loop. There is no cap to the number of entrants. Enjoy!
Key Dates
Registration Opens
Invalid Date
Race Day
Jun 7, 2025
Standard ends
Jun 7, 2025
Standard ends
Jun 7, 2025
Registration Closes
Invalid Date
Get alerts for 2025 Broken Brain Backyard
Registration opens, price changes, race updates: straight to your inbox.
Pricing
Current Price
$75
Standard
Price Progression
Standard
$75Jun 4, 2025
Standard
$30Jun 4, 2025
Race Planning
Plan 2025 Broken Brain Backyard with Crewable
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Make Race PlanAre you the race director for 2025 Broken Brain Backyard?
Claim this race to manage registration, volunteers, and race-day ops on Endurance HQ.