24hr • 12hr • 6hr • 3hr • Solo Runners and Teams
August 22- 23, 2026
Welcome to the Dog Days Ultra!
REGISTRATION OPENS MARCH 9 AT 8:00 AM (MST)
Missoula’s first closed-loop 24-hour race, Dog Days Ultra presents runners with the opportunity to test both speed and endurance on a 1.68-mile gravel aggregate loop with a whopping 9 feet of elevation! Located at the Big Sky Park, the race offers runners a supported environment to see just how far they can go as well as continuous and stunning 360 views of Missoula’s local mountain ranges.
Options Include:
- 24 HOUR SOLO
- 24 HOUR RELAY [2 to 6 team members]
- 12 HOUR SOLO
- 6 HOUR SOLO
- 3 HOUR SOLO
COURSE INFORMATION
The loop measures approximately 1.68 miles, with 9 feet of elevation gain per loop. The surface is primarily aggregate crushed gravel.
MORE INFO!
EVENT SCHEDULE
Welcome to your Dog Days Ultra weekend! From check-in to the final lap, our schedule is designed to keep things smooth, supportive, and fun — so you can spend less time wondering what’s next and more time running, resting, and soaking in the Big Sky views.
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DETAILS & GUIDELINES
All the Dog Days Deets!
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BENEFICIARY
The Historical Museum at Fort Missoula offers visitors a place to wonder, to reminisce, to learn about our county’s history and how our community’s past makes Missoula what it is today.
DONATE NOW!MISSOULA'S FIRST CLOSED LOOP COURSE ULTRA!
Join us this August to celebrate the Dog Days of Summer in the Last Best Place!
2026 Dog Days Ultra Sponsors
