Dog Days Ultra
Missoula, United States • 22-23 Aug 2026
Dog Days ULTRA
The Dog Days ULTRA is a closed-loop endurance event held at Missoula County Big Sky Park in Missoula, Montana. The race takes place on a 1.68-mile aggregate gravel loop. This flat course features a total of 9 feet of elevation gain per lap and provides continuous views of the local mountain ranges.
Participants can choose from several timed formats to test their endurance in a supported environment. The event serves as a benefit for The Historical Museum at Fort Missoula, a 32-acre historic park that preserves Western Montana’s history.
Available events include:
- 24 Hour Solo
- 24 Hour Relay for teams of 2 to 6 people
- 12 Hour Solo
- 6 Hour Solo
- 3 Hour Solo
The course is located at 3500 North Ave W in Missoula. Registration for the event typically opens in early March. Visit the organization's website for the most recent information.