Trail

Fast

BQ

Search Radius50 mi100 mi50

Upcoming Half Marathon Races Near Granby, CO

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
Calarat Challenge Trail Running Festival logo

Calarat Challenge Trail Running Festival

Jamestown, CO

Saturday, August 30th, 2025

Half
10K
5K
Trail
View details for race Calarat Challenge Trail Running Festival
All-Out Fall Fest logo

All-Out Fall Fest

Westminster, CO

Saturday, September 13th, 2025

Half
10K
5K
Trail
View details for race All-Out Fall Fest
Pioneer Prairie Dog Half, 10k & 5k logo

Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

Saturday, September 27th, 2025

Half
10K
5K
View details for race Pioneer Prairie Dog Half, 10k & 5k
Layafette Music Fest Half-Marathon/10K/5K logo

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

Louisville, CO

Sunday, October 5th, 2025

5K
Half
View details for race Layafette Music Fest Half-Marathon/10K/5K
Westy Half & 5k logo

Westy Half & 5k

Westminster, CO

Sunday, October 12th, 2025

Half
5K
View details for race Westy Half & 5k
All-Out Kooky-Spooky logo

All-Out Kooky-Spooky

Golden, CO

Sunday, November 2nd, 2025

Half
10K
5K
Trail
View details for race All-Out Kooky-Spooky
10k Turkey Trek & 5k Turkey Trot - Now With HALF MARATHON DISTANCE! logo

10k Turkey Trek & 5k Turkey Trot - Now With HAL...

Arvada, CO

Saturday, November 22nd, 2025

Half
10K
5K
Trail
View details for race 10k Turkey Trek & 5k Turkey Trot - Now With HALF MARATHON DISTANCE!
All-Out Fa La La logo

All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Half
10K
5K
Trail
View details for race All-Out Fa La La
All-Out Polar Prowl logo

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Half
10K
5K
Trail
View details for race All-Out Polar Prowl
Arctic Prairie Dog Half, 10k & 5k logo

Arctic Prairie Dog Half, 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

Half
10K
5K
View details for race Arctic Prairie Dog Half, 10k & 5k
All-Out Mardi Crawl logo

All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half
10K
5K
Trail
View details for race All-Out Mardi Crawl
All-Out Spring Fever logo

All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half
10K
5K
Trail
View details for race All-Out Spring Fever
Spring Fling Prairie Dog Half, 10k, & 5k logo

Spring Fling Prairie Dog Half, 10k, & 5k

Arvada, CO

Sunday, April 12th, 2026

Half
5K
10K
View details for race Spring Fling Prairie Dog Half, 10k, & 5k
All-Out Beat the Heat logo

All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half
10K
5K
Trail
View details for race All-Out Beat the Heat
Longmont Half & 5k (LM Half) logo

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half
5K
View details for race Longmont Half & 5k (LM Half)
Colorado 13er (Half Marathon/10k/5k) logo

Colorado 13er (Half Marathon/10k/5k)

Louisville, CO

Sunday, June 7th, 2026

Half
10K
5K
Trail
View details for race Colorado 13er (Half Marathon/10k/5k)
All-Out Summer Breeze logo

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half
10K
5K
Trail
View details for race All-Out Summer Breeze
All-Out Dog Days logo

All-Out Dog Days

Westminster, CO

Saturday, July 11th, 2026

Half
10K
5K
Trail
View details for race All-Out Dog Days
Erie Half & 5k logo

Erie Half & 5k

Erie, CO

Sunday, August 16th, 2026

Half
5K
View details for race Erie Half & 5k

Explore more in Granby, CO

Distances:

5K10KHalf MarathonMarathon

Months:

AugustSeptemberOctober

Tags:

TrailBoston QualifiersFast Courses

State:

All Colorado races

Don't see your race? Add it!

Add Your Race (Free)
Privacy PolicyTerms of ServiceContactAdd Your Race

© 2025 Find The Run. All rights reserved.