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Marathon Calendar near Fort Collins 2026-2027

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Explore the top marathons near Fort Collins for 2026-2027! We've gathered 6 exciting races in the area. Check out our detailed list below to find your next local race.

Marathon Calendar United States
September 2026
Sep
11-12
Fr - Sa

American Heroes Run

Trail Run 5 km 9 mi ... 551 min 100 mi
October 2026
Oct
4
Su

Windsor Marathon

5 km 10 km Half Marathon Marathon
Oct
10
Sa

The Long View Marathon

5 km 13 mi 26 mi
May 2027
May
2
Su

Colorado Marathon

5 km 10 km Half Marathon Marathon
June 2027
Jun
5-6
Sa - Su

Weld Your Mettle Running Festival

Backyard Ultra 4 mi 14 mi ... 100 mi 36 hr
Monthly updates for Fort Collins

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Jun
19-20
Sa - Su

Estes Park Marathon

5 km 5 mi ... Half Marathon Marathon
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