Name: Unicorn 5k (North)
Start: 2026-06-20
End: 2026-06-20
Location: Thornton

Colorado Cold Rush

Louisville, CO

Sunday, January 18th, 2026

Featured

5K

10K

View details for race Colorado Cold Rush

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Arctic Prairie Dog 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

Half

10K

5K

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

Polar Bear Run and Plunge

Fort Collins, CO

Saturday, January 24th, 2026

5K

View details for race Polar Bear Run and Plunge

Yeti Chase 5k/10k

Morrison, CO

Sunday, January 25th, 2026

5K

10K

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Freakin Freezin 5K - Denver

Denver, CO

Sunday, January 25th, 2026

5K

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RMRR Feb Trophy Series

Englewood, CO

Sunday, February 1st, 2026

5K

View details for race RMRR Feb Trophy Series

Westy Winter Waggle 5&10k

Westminster, CO

Saturday, February 7th, 2026

5K

10K

View details for race Westy Winter Waggle 5&10k

Super Sunday 5K

Littleton, CO

Sunday, February 8th, 2026

5K

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Heart Throb 5k

Arvada, CO

Saturday, February 14th, 2026

5K

Fast

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Parker Parks and Recreation Love 'em or Leave '...

Parker, CO

Saturday, February 14th, 2026

5K

10K

View details for race Parker Parks and Recreation Love 'em or Leave 'em Valentine's Day 5K/10K

Ralston Creek Half Marathon & 5k

Arvada, CO

Sunday, February 15th, 2026

5K

Trail

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All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half

10K

5K

Trail

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Highlands Ranch 5k

Highlands Ranch, CO

Sunday, February 22nd, 2026

5K

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

Denver, CO

Saturday, February 28th, 2026

5K

10K

Half

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

RMRR March Trophy Series

Littleton, CO

Sunday, March 1st, 2026

5K

Fast

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Sharin' O' The Green 5k

Fort Collins, CO

Saturday, March 14th, 2026

5K

Fast

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HRCA St. Patrick's Day 5K

Highlands Ranch, CO

Saturday, March 14th, 2026

5K

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

Severance, CO

Saturday, March 14th, 2026

5K

10K

15K

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

Lucky Leprechaun 5K

Boulder, CO

Sunday, March 15th, 2026

5K

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

Windsor, CO

Saturday, March 21st, 2026

5K

10K

15K

Trail

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All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

5K

Trail

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Central Park 5k

Denver, CO

Sunday, March 22nd, 2026

5K

Fast

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Run the Ranch

Loveland, CO

Friday, April 10th, 2026

10K

5K

Trail

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

Arvada, CO

Sunday, April 12th, 2026

Half

10K

5K

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

Platte River Half-Marathon and Relay

Littleton, CO

Sunday, April 12th, 2026

Half

5K

Trail

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Donut Dash

Denver, CO

Sunday, April 12th, 2026

5K

Fast

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All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

5K

Trail

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Great Western Trail Race

Severance, CO

Saturday, April 18th, 2026

5K

10K

Half

Trail

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Fairmount 5k

Golden, CO

Sunday, April 19th, 2026

5K

1 Mile

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

Littleton, CO

Sunday, April 19th, 2026

5K

10K

1 Mile

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Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

5K

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Unicorn 5k (Denver-East)

Denver, CO

Sunday, April 26th, 2026

5K

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2026 Flying Pig 5K

Fort Collins, CO

Sunday, April 26th, 2026

5K

View details for race 2026 Flying Pig 5K

Friends of the National Center Science Stride 5K

Boulder, CO

Friday, May 1st, 2026

5K

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

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half

5K

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The Colorado Marathon

Fort Collins, CO

Sunday, May 3rd, 2026

Marathon

Half

10K

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RMRR May Trophy Series

Denver, CO

Sunday, May 3rd, 2026

5K

Fast

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HRCA Mother's Day 5K

Highlands Ranch, CO

Saturday, May 9th, 2026

5K

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Parker Parks and Recreation Miles over the Mead...

Parker, CO

Saturday, May 9th, 2026

5K

1 Mile

View details for race Parker Parks and Recreation Miles over the Meadow Mother’s Day 5K & Family Fun Trek

Hometown Half Marathon & 5k/10k - Denver

Denver, CO

Sunday, May 10th, 2026

5K

10K

Half

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Colorado Women's Classic - Westminster

Westminster, CO

Sunday, May 10th, 2026

5K

10K

10 Miles

View details for race Colorado Women's Classic - Westminster

StepUp For Women And Recovery

Fort Collins, CO

Saturday, June 6th, 2026

5K

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J-Town Jog 5K and Youth Mile

Johnstown, CO

Saturday, June 6th, 2026

1 Mile

5K

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Flamingo Day 5K

Denver, CO

Sunday, June 7th, 2026

5K

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

Louisville, CO

Sunday, June 7th, 2026

Half

10K

5K

Trail

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Treat Trot Denver

Denver, CO

Saturday, June 13th, 2026

5K

10K

15K

View details for race Treat Trot Denver

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

5K

Trail

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Muddy Dash | Denver 2026

Dacono, CO

Saturday, June 20th, 2026

5K

View details for race Muddy Dash | Denver 2026

Parker Parks and Recreation Dash Across the Dam...

Parker, CO

Saturday, June 20th, 2026

5K

View details for race Parker Parks and Recreation Dash Across the Dam Father’s Day 5K

Unicorn 5k (North)

Thornton, CO

Saturday, June 20th, 2026

5K

View details for race Unicorn 5k (North)

Upcoming 5K Races Near Thornton, CO