Ultra Marathons in Idaho 2026 - 2027

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Ultra Marathons Found In Idaho

The most comprehensive list of Ultra Marathons in and near Idaho in 2026 - 2027. Find your perfect race!

Idaho Falls, Idaho

Dizzy Horse, A Winter Backyard Ultra

Fri, Jan 8, 2027

$69.90

Boise, Idaho

Boise Greenbelt Relays & 50 Mile Ultra

Sat, Apr 24, 2027

from $80.50

Coeur D'Alene, Idaho

CDA Ultra 73.2 (Trail of the Coeur D’Alenes)

Fri, Sep 10–11, 2027

Free–$1,249.00

Priest River, Idaho

Priest Lake Marathon

Sat, Sep 18, 2027

from $32.99

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