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Upcoming Races Near Fort Collins, CO in October, 2025

Jack-o’-Lantern Jog 5k

Fort Collins, CO

Monday, October 13th, 2025

Featured

5K

Trail

View details for race Jack-o’-Lantern Jog 5k

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Boulder Turkey Trot Training Program

Boulder, CO

Wednesday, October 15th, 2025

View details for race Boulder Turkey Trot Training Program

Blue Sky Trail Marathon & Half Marathon

Fort Collins, CO

Saturday, October 18th, 2025

Trail

View details for race Blue Sky Trail Marathon & Half Marathon

Homecoming 5k - Colorado State University

Fort Collins, CO

Saturday, October 18th, 2025

5K

View details for race Homecoming 5k - Colorado State University

Blue Sky Marathon & Half

Fort Collins, CO

Saturday, October 18th, 2025

Half

Marathon

View details for race Blue Sky Marathon & Half

2025 Redrum Fun Run

Greeley, CO

Saturday, October 25th, 2025

View details for race 2025 Redrum Fun Run

2025 Eerie Erie

Erie, CO

Saturday, October 25th, 2025

10K

5K

Trail

View details for race 2025 Eerie Erie

Apex Foundation Trick or Trot 5K & Halloween Hunt

Arvada, CO

Saturday, October 25th, 2025

5K

1 Mile

View details for race Apex Foundation Trick or Trot 5K & Halloween Hunt

Narrowleaf Lake Run & Pumpkin Run

Loveland, CO

Sunday, October 26th, 2025

1 Mile

10K

15K

View details for race Narrowleaf Lake Run & Pumpkin Run

Explore more in Fort Collins, CO

Distances:

5K 10K Half Marathon Marathon

Months:

October November December

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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