Ultramarathons in Montana
As of October 6, 2026, Crewable lists 5 upcoming ultramarathons in Montana from October 2026 to September 2027. The next is Le Grizz Ultramarathon & Relay on October 10 in Polebridge. Registration is open for 2.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
Race calendar
October 2026
2 racesJune 2027
2 racesSeptember 2027
1 raceQuick answers
What is the next ultramarathon in Montana?
Le Grizz Ultramarathon & Relay, on Saturday, October 10, 2026, in Polebridge. Distances: 50 mi, 15K, 5K.
How many ultramarathons in Montana have open registration?
2 of the 5 list registration as open as of October 6, 2026, including Le Grizz Ultramarathon & Relay and CITY TO SKY TRAIL RACES.
What is the busiest month for ultramarathons in Montana?
October 2026, with 2 of the 5. June 2027 follows with 2.
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