Privacy Policy Terms of Service Contact Add Your Race

© 2025 Find The Run. All rights reserved.

Trail

Fast

BQ

Search Radius50 mi100 mi50

Upcoming 5K Races Near Boulder, CO in December, 2025

Sweaty Sweater 5k

Fort Collins, CO

Saturday, December 6th, 2025

Featured

5K

1 Mile

View details for race Sweaty Sweater 5k

Want to feature your race?

Get your race seen first by thousands of runners

Learn how to feature your race

All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Half

10K

5K

Trail

View details for race All-Out Fa La La

Santa Catch 5k & 10k

Windsor, CO

Saturday, December 13th, 2025

5K

10K

1 Mile

Trail

View details for race Santa Catch 5k & 10k

Santa Shuffle 2024

Littleton, CO

Saturday, December 13th, 2025

5K

View details for race Santa Shuffle 2024

Superior Stocking Run

Superior, CO

Saturday, December 13th, 2025

5K

Fast

View details for race Superior Stocking Run

WinterFest 5k & Fun Run

Thornton, CO

Saturday, December 13th, 2025

5K

View details for race WinterFest 5k & Fun Run

2025 Jingle Bell Run - Colorado

Denver, CO

Sunday, December 14th, 2025

5K

View details for race 2025 Jingle Bell Run - Colorado

Run Like a Reindeer 5K

Winter Park, CO

Saturday, December 20th, 2025

5K

Trail

View details for race Run Like a Reindeer 5K

Santa's Dash for Ca$h

Denver, CO

Saturday, December 20th, 2025

5K

View details for race Santa's Dash for Ca$h

Ugly Sweater 5K

Denver, CO

Sunday, December 21st, 2025

5K

Fast

View details for race Ugly Sweater 5K

Candy Cane Course - Denver

Westminster, CO

Saturday, December 27th, 2025

1 Mile

5K

12K

View details for race Candy Cane Course - Denver

Candy Cane Course - Denver

Denver, CO

Saturday, December 27th, 2025

1 Mile

5K

12K

View details for race Candy Cane Course - Denver

Steve's Event Page

Morrison, CO

Wednesday, December 31st, 2025

5K

View details for race Steve's Event Page

Resolution Run 5K

Fort Collins, CO

Wednesday, December 31st, 2025

5K

View details for race Resolution Run 5K

Explore more in Boulder, CO

Distances:

5K 10K Half Marathon Marathon

Months:

October November December

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

Don't see your race? Add it!

Add Your Race (Free)