Upcoming Races Near Longmont, CO

Name: Bigfoot Half Marathon
Start: 2026-04-25
End: 2026-04-25
Location: Estes Park

RMRR Feb Trophy Series

Englewood, CO

Sunday, February 1st, 2026

Featured

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Edora Park T&H 8K

Fort Collins, CO

Sunday, February 1st, 2026

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Westy Winter Waggle 5&10k

Westminster, CO

Saturday, February 7th, 2026

10K

View details for race Westy Winter Waggle 5&10k

Super Sunday 5K

Littleton, CO

Sunday, February 8th, 2026

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Heart Throb 5k

Arvada, CO

Saturday, February 14th, 2026

Fast

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Sweetheart Classic

Loveland, CO

Saturday, February 14th, 2026

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Virginia Canyon is for Lovers

Idaho Springs, CO

Saturday, February 14th, 2026

Trail

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

Parker, CO

Saturday, February 14th, 2026

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

Trail

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Chilly Cheeks Duathlon

Englewood, CO

Saturday, February 21st, 2026

Fast

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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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Bacon Strip Race

Fort Collins, CO

Sunday, February 22nd, 2026

10 Miles

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

Denver, CO

Saturday, February 28th, 2026

10K

Half

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

Westminster, CO

Saturday, February 28th, 2026

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

Fast

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4th Anniversary Beer and Donut Hole Miles

Arvada, CO

Saturday, March 7th, 2026

1 Mile

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St. Paddy's Day Run

Berthoud, CO

Saturday, March 14th, 2026

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Erin Go Bragh 7.77k

Westminster, CO

Saturday, March 14th, 2026

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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, 15k & Half Marathon

Severance, CO

Saturday, March 14th, 2026

10K

15K

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

Lucky Leprechaun 5K

Boulder, CO

Sunday, March 15th, 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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All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

Trail

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Central Park 5k

Denver, CO

Sunday, March 22nd, 2026

Fast

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Cryogenic Cannibal Chase

Estes Park, CO

Saturday, March 28th, 2026

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The City Park Circuit

Denver, CO

Saturday, March 28th, 2026

Fast

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RMRR Spring Marathon Training Series #1

Thornton, CO

Sunday, March 29th, 2026

10 Miles

Ultra

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Spring Equinox

Wellington, CO

Sunday, March 29th, 2026

Half

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Three Creeks Half Marathon

Englewood, CO

Sunday, April 5th, 2026

Half

Trail

Fast

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Hot Laps - Denver

Denver, CO

Thursday, April 9th, 2026

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Run the Ranch

Loveland, CO

Friday, April 10th, 2026

10K

Trail

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Rockin on the River 5K

Littleton, CO

Saturday, April 11th, 2026

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RMRR Spring Marathon Training Series #2

Thornton, CO

Saturday, April 11th, 2026

10 Miles

Ultra

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

Arvada, CO

Sunday, April 12th, 2026

Half

10K

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

Prairie Dog Run Series

Louisville, CO

Sunday, April 12th, 2026

Half

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Donut Dash

Denver, CO

Sunday, April 12th, 2026

Fast

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RMRR April Trophy Series

Denver, CO

Sunday, April 12th, 2026

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Healthy Kids Running Series Spring 2026 - Auror...

Aurora, CO

Sunday, April 12th, 2026

View details for race Healthy Kids Running Series Spring 2026 - Aurora, CO

Healthy Kids Running Series Spring 2026 - Denve...

Denver, CO

Sunday, April 12th, 2026

View details for race Healthy Kids Running Series Spring 2026 - Denver, CO

Boulder Track Series Meet 1

Longmont, CO

Sunday, April 12th, 2026

1 Mile

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Platte River Half-Marathon and Relay

Littleton, CO

Sunday, April 12th, 2026

Half

Trail

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All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

Trail

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Great Western Trail Race

Severance, CO

Saturday, April 18th, 2026

10K

Half

Trail

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Horsetooth Half Marathon - Presented by Fort Co...

Fort Collins, CO

Sunday, April 19th, 2026

Half

Fast

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

Littleton, CO

Sunday, April 19th, 2026

10K

1 Mile

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NoCo Half Marathon & 10K

Loveland, CO

Saturday, April 25th, 2026

10K

Half

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Runs With Scissors Races

Brighton, CO

Saturday, April 25th, 2026

Half

Marathon

Ultra

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Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

View details for race Bigfoot Half Marathon

Explore more in Longmont, CO

Distances:

5K 10K Half Marathon Marathon

Months:

January February March

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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