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Running Calendar near Fort Collins 2025-2026

Explore the top running races near Fort Collins for 2025-2026! We've gathered 35 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
November 2025
Nov
27
Th

Pelican Lakes Turkey Trot
5 km
Nov
27
Th

Loveland Turkey Trot
5 km
Nov
27
Th

NCMC Turkey Trot
5 km
Nov
27
Th

Fort Collins Thanksgiving Day Run
4 mi
Nov
27
Th

Fitness Avenue Turkey Trot
5 km
December 2025
Dec
6
Sa

Toy Drop
5 km 10 km 15 km
Dec
6
Sa

Thumbs Up Vertical Challenge
Trail Run
Dec
6
Sa

Sweaty Sweater 5k
5 km
Dec
12
Fr

Chase the Glow
4 mi
Dec
13
Sa

Santa Catch 10k
5 km 10 km
Dec
31
We

Resolution Run - Fort Collins
5 km
March 2026
Mar
14
Sa

Sharin' O' The Green
5 km
Mar
14
Sa

Lucky Brew Race 15K
5 km 10 km 15 km
Mar
28
Sa

Cryogenic Cannibal Chase
8 km
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
Apr
19
Su

Horsetooth Half Marathon
Half Marathon
May 2026
May
3
Su

Colorado Marathon
5 km 10 km Half Marathon Marathon
May
3
Su

Longmont Half
5 km Half Marathon
May
30-31
Sa - Su

Weld Your Mettle Running Festival
Backyard Ultra 4 mi 14 mi ... 100 km 100 mi