Upcoming Races Near Fort Collins, CO in October, 2025

Name: Narrowleaf Lake Run & Pumpkin Run
Start: 2025-10-26
End: 2025-10-26
Location: Loveland

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Flyin' Ryan Memorial 5k

Greeley, CO

Friday, October 3rd, 2025

View details for race Flyin' Ryan Memorial 5k

Not So Flatt Breast Cancer Awareness Run/Walk –...

Westminster, CO

Saturday, October 4th, 2025

10K

View details for race Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO

PRA Miner Gold Rush

Broomfield, CO

Saturday, October 4th, 2025

1 Mile

View details for race PRA Miner Gold Rush

Big Waves Family 5K run/walk Presented by Brumate

Westminster, CO

Saturday, October 4th, 2025

View details for race Big Waves Family 5K run/walk Presented by Brumate

I Can 5k

Thornton, CO

Saturday, October 4th, 2025

View details for race I Can 5k

Layafette Music Fest Half-Marathon/10K/5K

Louisville, CO

Sunday, October 5th, 2025

Half

View details for race Layafette Music Fest Half-Marathon/10K/5K

Strides for Sierra 5K run/walk

Arvada, CO

Sunday, October 5th, 2025

View details for race Strides for Sierra 5K run/walk

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mi...

Windsor, CO

Sunday, October 5th, 2025

Marathon

Half

10K

View details for race Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run

Boulder XC Series Meet 1

Boulder, CO

Saturday, October 11th, 2025

View details for race Boulder XC Series Meet 1

The Long View Marathon

Fort Collins, CO

Saturday, October 11th, 2025

Marathon

Half

View details for race The Long View Marathon

Gummball 5K

Brighton, CO

Saturday, October 11th, 2025

View details for race Gummball 5K

Joy & Justice 5k

Timnath, CO

Sunday, October 12th, 2025

1 Mile

View details for race Joy & Justice 5k

Westy Half & 5k

Westminster, CO

Sunday, October 12th, 2025

Half

View details for race Westy Half & 5k

Boulder Turkey Trot Training Program

Boulder, CO

Wednesday, October 15th, 2025

View details for race Boulder Turkey Trot Training Program

Homecoming 5k - Colorado State University

Fort Collins, CO

Saturday, October 18th, 2025

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

Blue Sky Trail Marathon & Half Marathon

Fort Collins, CO

Saturday, October 18th, 2025

Trail

View details for race Blue Sky Trail Marathon & Half Marathon

2025 Redrum Fun Run

Greeley, CO

Saturday, October 25th, 2025

View details for race 2025 Redrum Fun Run

Apex Foundation Trick or Trot 5K & Kids' Hallow...

Arvada, CO

Saturday, October 25th, 2025

1 Mile

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

2025 Eerie Erie

Erie, CO

Saturday, October 25th, 2025

10K

Trail

View details for race 2025 Eerie Erie

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:

August September October

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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