Marathon · Fort Collins

Marathons in Fort Collins, CO in May

Every marathon happening in or near Fort Collins during May. Sorted by date with deterministic 0–100 scores so you can pick the right one for your goal.

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Marathon

The Colorado Marathon

Sun, May 3, 2026

Fort Collins, Colorado

road

Rolling

60PR50value65vibe

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5Ks in Fort Collins 10Ks in Fort Collins Half Marathons in Fort Collins Trail Races in Fort Collins All races in Colorado Marathons in Fort Collins (all months)