Upcoming Races Near Brighton, CO in October, 2025

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

Featured Races Get Seen

Be the first race runners see — and grow your registrations. Put your race at the top.

Feature Your Race

Learn how to feature your race

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

RunAbilities FUN Walk/Run/Roll

Parker, CO

Saturday, October 4th, 2025

Trail

View details for race RunAbilities FUN Walk/Run/Roll

I Can 5k

Thornton, CO

Saturday, October 4th, 2025

View details for race I Can 5k

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

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

Windsor, CO

Sunday, October 5th, 2025

Marathon

Half

10K

Trail

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

Healthy Kids Running Series Fall 2025 - Denver, CO

Denver, CO

Sunday, October 5th, 2025

View details for race Healthy Kids Running Series Fall 2025 - Denver, CO

Liberty Energy 5K - Benefiting the Bettering Hu...

Denver, CO

Sunday, October 5th, 2025

View details for race Liberty Energy 5K - Benefiting the Bettering Human Lives Foundation

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

RMRR October Trophy Series

Aurora, CO

Sunday, October 5th, 2025

Fast

View details for race RMRR October Trophy Series

The Long View Marathon

Fort Collins, CO

Saturday, October 11th, 2025

Marathon

Half

View details for race The Long View Marathon

Kipling Villas 5K - 2024

Littleton, CO

Saturday, October 11th, 2025

View details for race Kipling Villas 5K - 2024

Gummball 5K

Brighton, CO

Saturday, October 11th, 2025

View details for race Gummball 5K

Suffer Better 9th Annual Fall Trail Runs

Pine, CO

Saturday, October 11th, 2025

Ultra

Trail

View details for race Suffer Better 9th Annual Fall Trail Runs

Boulder XC Series Meet 1

Boulder, CO

Saturday, October 11th, 2025

View details for race Boulder XC Series Meet 1

The bRUNch Run™ -

Denver, CO

Sunday, October 12th, 2025

10K

15K

View details for race The bRUNch Run™ -

Westy Half & 5k

Westminster, CO

Sunday, October 12th, 2025

Half

View details for race Westy Half & 5k

Joy & Justice 5k

Timnath, CO

Sunday, October 12th, 2025

1 Mile

View details for race Joy & Justice 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

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

Blue Sky Marathon & Half

Fort Collins, CO

Saturday, October 18th, 2025

Half

Marathon

View details for race Blue Sky Marathon & Half

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 5 Miler

Lakewood, CO

Saturday, October 18th, 2025

10 Miles

View details for race The Great Trailhead Foot Race 5 Miler

Expo Park XC Runs

Aurora, CO

Sunday, October 19th, 2025

View details for race Expo Park XC Runs

DU Crimson Classic 5K Run/1.5 Mile Walk

Denver, CO

Wednesday, October 22nd, 2025

1 Mile

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

Race to Cure Sarcoma Denver

Denver, CO

Saturday, October 25th, 2025

View details for race Race to Cure Sarcoma Denver

Halloween Fun Run 5k & 1mile - Zombie Theme

Idaho Springs, CO

Saturday, October 25th, 2025

1 Mile

View details for race Halloween Fun Run 5k & 1mile - Zombie Theme

Apex Foundation Trick or Trot 5K & Halloween Hu...

Arvada, CO

Saturday, October 25th, 2025

1 Mile

View details for race Apex Foundation Trick or Trot 5K & Halloween Hunt presented by Intermountain Health

2025 Eerie Erie

Erie, CO

Saturday, October 25th, 2025

10K

Trail

View details for race 2025 Eerie Erie

2025 Redrum Fun Run

Greeley, CO

Saturday, October 25th, 2025

View details for race 2025 Redrum Fun Run

The 13th Annual Odyssey Odyssey - 2025

Denver, CO

Sunday, October 26th, 2025

1 Mile

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

Ghosts and Goblins 5K/10K

Denver, CO

Sunday, October 26th, 2025

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

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 Brighton, CO

Distances:

5K 10K Half Marathon Marathon

Months:

August September October

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

Don't see your race? Add it!

Add Your Race (Free)