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Running calendar near Fort Collins 2024-2025

Explore the top running races near Fort Collins for 2024-2025! We've gathered 18 exciting races in the area. Check out our detailed list below to find your next local race.

October 2024
Oct
19
Saturday

Blue Sky Trail Marathon

Trail Run 13 mi 26 mi
December 2024
Dec
7
Saturday

Thumbs Up Vertical Challenge

Trail Run 8 hr
Dec
7
Saturday

Toy Drop

5 km 10 km 15 km
Dec
14
Saturday

Santa Catch 10k

5 km 10 km
Dec
14
Saturday

Santa's Summit Slam

Trail Run 5 mi
March 2025
Mar
15
Saturday

Lucky Brew Race 15K

5 km 10 km 15 km
April 2025
Apr
13
Sunday

Horsetooth Half Marathon

13 mi
Apr
26
Saturday

Bigfoot Half Marathon

5 km 13 mi
May 2025
May
4
Sunday

Colorado Marathon

5 km 10 km 13 mi 26 mi
May
4
Sunday

Longmont Half

5 km 13 mi
May
17
Saturday

Samson's Revenge

Trail Run 10 km 27 km 55 km
June 2025
Jun
1
Sunday

Crazy Legs 10K+ Trail Run

Trail Run
Jun
14
Saturday

Estes Park's Backyard Ultra

Backyard Ultra 4 mi
Jun
28
Saturday

Timberview Trail Run

Trail Run 5 km 5 mi 10 mi
August 2025
Aug
1-2
Fr - Sa

Rocky Mountain Half Marathon

5 km 13 mi
Aug
6-27
We - We

Lory Summer Trail Series

Trail Run 5 km 10 km 12 km
Aug - Sep
28-1
Th - Mo

Front Range Ultra Dayze

Trail Run
September 2025
Sep
7
Sunday

Black Squirrel Half

Trail Run 13 mi