Upcoming 5K Races In Colorado, US in October, 2025

Name: The 13th Annual Odyssey Odyssey - 2025
Start: 2025-10-26
End: 2025-10-26
Location: Denver

Flyin' Ryan Memorial 5k

Greeley, CO

Friday, October 3rd, 2025

View details for race Flyin' Ryan Memorial 5k

I Can 5k

Thornton, CO

Saturday, October 4th, 2025

View details for race I Can 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

Big Waves Family 5K run/walk Whiteout Presented...

Westminster, CO

Saturday, October 4th, 2025

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

PRA Miner Gold Rush

Broomfield, CO

Saturday, October 4th, 2025

1 Mile

View details for race PRA Miner Gold Rush

Colorado Springs Marathon, Half, 5K, and Kids K

Colorado Springs, CO

Saturday, October 4th, 2025

Marathon

Half

Trail

View details for race Colorado Springs Marathon, Half, 5K, and Kids K

Windsor Marathon, Half Marathon, 10k & 5k

Windsor, CO

Sunday, October 5th, 2025

Marathon

Half

10K

Trail

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

RMRR October Trophy Series

Aurora, CO

Sunday, October 5th, 2025

Fast

View details for race RMRR October Trophy Series

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

Chicken Creek Challenge

Mancos, CO

Saturday, October 11th, 2025

View details for race Chicken Creek Challenge

Rubey Rescue Run

Aspen, CO

Saturday, October 11th, 2025

Trail

View details for race Rubey Rescue Run

Gummball 5K

Brighton, CO

Saturday, October 11th, 2025

View details for race Gummball 5K

The Long View Marathon

Fort Collins, CO

Saturday, October 11th, 2025

Half

Marathon

View details for race The Long View Marathon

Manitou 5K

Manitou Springs, CO

Saturday, October 11th, 2025

View details for race Manitou 5K

The bRUNch Run™ -

Denver, CO

Sunday, October 12th, 2025

10K

15K

View details for race The bRUNch Run™ -

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

2025 DU Crimson Classic 5K Run/1.5 Mile Walk

Denver, CO

Tuesday, October 14th, 2025

View details for race 2025 DU Crimson Classic 5K Run/1.5 Mile Walk

Mancos Cowboy Half Marathon, 5K, and Fun Run

Mancos, CO

Saturday, October 18th, 2025

Half

1 Mile

Trail

Fast

View details for race Mancos Cowboy Half Marathon, 5K, and Fun Run

Homecoming 5k - Colorado State University

Fort Collins, CO

Saturday, October 18th, 2025

View details for race Homecoming 5k - Colorado State University

The Great Trailhead Foot Race 10 Miler & 5k

Lakewood, CO

Saturday, October 18th, 2025

10 Miles

Trail

View details for race The Great Trailhead Foot Race 10 Miler & 5k

Race to Cure Sarcoma Denver

Denver, CO

Saturday, October 25th, 2025

View details for race Race to Cure Sarcoma Denver

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

YMCA of Pueblo Spooky Sprint 5K

Pueblo, CO

Saturday, October 25th, 2025

View details for race YMCA of Pueblo Spooky Sprint 5K

Foundry Halloween 5k

Steamboat Springs, CO

Saturday, October 25th, 2025

Trail

View details for race Foundry Halloween 5k

Ghosts and Goblins 5K/10K

Denver, CO

Sunday, October 26th, 2025

View details for race Ghosts and Goblins 5K/10K

The 13th Annual Odyssey Odyssey - 2025

Denver, CO

Sunday, October 26th, 2025

1 Mile

View details for race The 13th Annual Odyssey Odyssey - 2025

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