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Trail Running Calendar near Fort Collins 2025-2026

Explore the top trail runs near Fort Collins for 2025-2026! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.

December 2025
Dec
6
Sa

Thumbs Up Vertical Challenge
Trail Run
April 2026
Apr
10-11
Fr - Sa

Run The Ranch
Trail Run 5 km 10 km ... 6 hr 12 hr
Apr
18
Sa

Great Western Trail Race
Trail Run 5 km 10 km Half Marathon
June 2026
Jun
7
Su

Crazy Legs Trail Run
Trail Run 10 km
Jun
27
Sa

Timberview Trail Run
Trail Run 5 km 5 mi 10 mi
July 2026
Jul-Aug
31-1
Fr - Sa

Wild West Relay
Trail Run 200 mi
August 2026
Aug
4-25
Tu

Lory Summer Trail Series
Trail Run 5 km 10 km 12 km
Aug
4
Tu

Eltuck Valley 12K Trail Series
Trail Run 5 km 10 km 12 km
September 2026
Sep
3-7
Th - Mo

Front Range Ultra Dayze
Trail Run
Sep
12
Sa

Black Squirrel Half
Trail Run 14 mi