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50K Races in Idaho

As of October 22, 2026, Crewable lists 4 upcoming 50K races in Idaho from October 2026 to August 2027. The next is Fall Creek Beast on October 31 in Swan Valley. Registration is open for 2.

Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites

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Race calendar

October 2026

1 race

  1. Fall Creek Beast

    Swan Valley, ID6,000 ft gain
    50KHalf Marathon
    Open until Oct 29from $59

April 2027

1 race

June 2027

1 race

August 2027

1 race

Quick answers

What is the next 50K race in Idaho?

Fall Creek Beast, on Saturday, October 31, 2026, in Swan Valley. Distances: 50K, Half Marathon.

How many 50K races in Idaho have open registration?

2 of the 4 list registration as open as of October 22, 2026, including Fall Creek Beast and Harriman Ultra Trail Runs.

What is the busiest month for 50K races in Idaho?

October 2026, with 1 of the 4. April 2027 follows with 1.

Neighboring states

Montana16Nevada7Oregon17Utah20Washington22Wyoming7

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