Upcoming 5K Races Near Thornton, CO

Name: Hometown Half Marathon & 5k/10k - Denver
Start: 2026-05-10
End: 2026-05-10
Location: Denver

Sweaty Sweater 5k

Fort Collins, CO

Saturday, December 6th, 2025

Featured

1 Mile

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All-Out Fa La La

Westminster, CO

Saturday, December 6th, 2025

Half

10K

Trail

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Santa Shuffle 2024

Littleton, CO

Saturday, December 13th, 2025

View details for race Santa Shuffle 2024

Superior Stocking Run

Superior, CO

Saturday, December 13th, 2025

Fast

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WinterFest 5k & Fun Run

Thornton, CO

Saturday, December 13th, 2025

View details for race WinterFest 5k & Fun Run

Santa Catch 5k & 10k

Windsor, CO

Saturday, December 13th, 2025

10K

1 Mile

Trail

View details for race Santa Catch 5k & 10k

2025 Jingle Bell Run - Colorado

Denver, CO

Sunday, December 14th, 2025

View details for race 2025 Jingle Bell Run - Colorado

Run Like a Reindeer 5K

Winter Park, CO

Saturday, December 20th, 2025

Trail

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Santa's Dash for Ca$h

Denver, CO

Saturday, December 20th, 2025

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

Ugly Sweater 5K

Denver, CO

Sunday, December 21st, 2025

Fast

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Candy Cane Course - Denver

Denver, CO

Saturday, December 27th, 2025

1 Mile

12K

View details for race Candy Cane Course - Denver

Candy Cane Course - Denver

Westminster, CO

Saturday, December 27th, 2025

1 Mile

12K

View details for race Candy Cane Course - Denver

Resolution Run - Fort Collins

Fort Collins, CO

Wednesday, December 31st, 2025

View details for race Resolution Run - Fort Collins

Resolution Run 5K

Fort Collins, CO

Wednesday, December 31st, 2025

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Steve's Event Page

Morrison, CO

Wednesday, December 31st, 2025

View details for race Steve's Event Page

Resolute Runner 5k

Arvada, CO

Thursday, January 1st, 2026

Trail

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Sentinel Flurry

Golden, CO

Saturday, January 10th, 2026

1 Mile

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All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Half

10K

Trail

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Colorado Cold Rush

Louisville, CO

Sunday, January 18th, 2026

10K

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Arctic Prairie Dog Half, 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

Half

10K

View details for race Arctic Prairie Dog Half, 10k & 5k

Polar Bear Run and Plunge

Fort Collins, CO

Saturday, January 24th, 2026

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Yeti Chase 5k/10k

Morrison, CO

Sunday, January 25th, 2026

10K

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Freakin Freezin 5K - Denver

Denver, CO

Sunday, January 25th, 2026

View details for race Freakin Freezin 5K - Denver

Westy Winter Waggle 5&10k

Westminster, CO

Saturday, February 7th, 2026

10K

View details for race Westy Winter Waggle 5&10k

Heart Throb 5k

Arvada, CO

Saturday, February 14th, 2026

Fast

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Ralston Creek Half Marathon & 5k

Arvada, CO

Sunday, February 15th, 2026

Trail

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All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half

10K

Trail

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Highlands Ranch 5k

Highlands Ranch, CO

Sunday, February 22nd, 2026

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Time to Paddy 5k/10k & Lucky 13.1 - Denver

Denver, CO

Saturday, February 28th, 2026

10K

Half

View details for race Time to Paddy 5k/10k & Lucky 13.1 - Denver

Lucky Brew Race 5K, 10K, 15k & Half Marathon

Severance, CO

Saturday, March 14th, 2026

10K

15K

View details for race Lucky Brew Race 5K, 10K, 15k & Half Marathon

Sharin' O' The Green 5k

Fort Collins, CO

Saturday, March 14th, 2026

Fast

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HRCA St. Patrick's Day 5K

Highlands Ranch, CO

Saturday, March 14th, 2026

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Lucky Brew Race 5K, 10K, and 15K

Windsor, CO

Saturday, March 21st, 2026

10K

15K

Trail

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Central Park 5k

Denver, CO

Sunday, March 22nd, 2026

Fast

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All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

Trail

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Run the Ranch

Loveland, CO

Friday, April 10th, 2026

10K

Trail

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Donut Dash

Denver, CO

Sunday, April 12th, 2026

Fast

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Platte River Half-Marathon and Relay

Littleton, CO

Sunday, April 12th, 2026

Half

Trail

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

Arvada, CO

Sunday, April 12th, 2026

Half

10K

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Great Western Trail Race

Severance, CO

Saturday, April 18th, 2026

10K

Half

Trail

Fast

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All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

Trail

View details for race All-Out Beat the Heat

DoNot Stop Half Marathon (5k/10k) - Denver

Littleton, CO

Sunday, April 19th, 2026

10K

1 Mile

View details for race DoNot Stop Half Marathon (5k/10k) - Denver

Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

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Unicorn 5k (Denver-East)

Denver, CO

Sunday, April 26th, 2026

View details for race Unicorn 5k (Denver-East)

Friends of the National Center Science Stride 5K

Boulder, CO

Friday, May 1st, 2026

View details for race Friends of the National Center Science Stride 5K

The Colorado Marathon

Fort Collins, CO

Sunday, May 3rd, 2026

Marathon

Half

10K

View details for race The Colorado Marathon

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half

View details for race Longmont Half & 5k (LM Half)

HRCA Mother's Day 5K

Highlands Ranch, CO

Saturday, May 9th, 2026

View details for race HRCA Mother's Day 5K

Colorado Women's Classic - Westminster

Westminster, CO

Sunday, May 10th, 2026

10K

10 Miles

View details for race Colorado Women's Classic - Westminster

Hometown Half Marathon & 5k/10k - Denver

Denver, CO

Sunday, May 10th, 2026

10K

Half

View details for race Hometown Half Marathon & 5k/10k - Denver

Explore more in Thornton, 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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