Upcoming Races Near Windsor, CO in December, 2025

Toy Drop

Loveland, CO

Saturday, December 6th, 2025

Featured

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Sweaty Sweater 5k

Fort Collins, CO

Saturday, December 6th, 2025

5K

1 Mile

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All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Half

10K

5K

Trail

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Onesie Dash

Red Feather Lakes, CO

Saturday, December 6th, 2025

1 Mile

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Spring Park T&H 6K

Fort Collins, CO

Sunday, December 7th, 2025

View details for race Spring Park T&H 6K

Boulder Long runs and Lattes

Boulder, CO

Sunday, December 7th, 2025

10K

View details for race Boulder Long runs and Lattes

RMRR December Trophy Series

Denver, CO

Sunday, December 7th, 2025

Fast

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Chase the Glow

Estes Park, CO

Friday, December 12th, 2025

1 Mile

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Santa Catch 5k & 10k

Windsor, CO

Saturday, December 13th, 2025

5K

10K

1 Mile

Trail

View details for race Santa Catch 5k & 10k

Main Street Kids Run / Walk

Longmont, CO

Saturday, December 13th, 2025

1 Mile

View details for race Main Street Kids Run / Walk

Superior Stocking Run

Superior, CO

Saturday, December 13th, 2025

5K

Fast

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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 the Ranch Training Runs

Loveland, CO

Sunday, December 14th, 2025

View details for race Run the Ranch Training Runs

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

Resolution Run - Fort Collins

Fort Collins, CO

Wednesday, December 31st, 2025

5K

View details for race Resolution Run - Fort Collins

Resolution Run 5K

Fort Collins, CO

Wednesday, December 31st, 2025

5K

View details for race Resolution Run 5K

TEST RACE

Boulder, CO

Wednesday, December 31st, 2025

View details for race TEST RACE

Explore more in Windsor, CO

Distances:

5K 10K Half Marathon Marathon

Months:

November December January

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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