Upcoming Races Near Windsor, CO

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Run Like the Wind 5k / 2k / Dog Jog

Allenspark, CO

Saturday, August 29th, 2026

View details for race Run Like the Wind 5k / 2k / Dog Jog

Raising the Barr

Brighton, CO

Saturday, September 5th, 2026

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Demon Dash

Arvada, CO

Saturday, September 5th, 2026

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Golden Harvest Half Marathon & 5k/10k - Denver

Denver, CO

Saturday, September 5th, 2026

1 Mile

10K

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

Golden Harvest Half Marathon & 5k/10k - Denver

Westminster, CO

Saturday, September 5th, 2026

1 Mile

10K

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

FCA All Abilities Labor Day 5K

Loveland, CO

Monday, September 7th, 2026

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FCA All-Abilities Labor Day 5K

Loveland, CO

Monday, September 7th, 2026

1 Mile

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14th Annual Superhero Event

Greeley, CO

Thursday, September 10th, 2026

10K

1 Mile

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The Denver 5k

Denver, CO

Saturday, September 12th, 2026

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For The City Network 5K

Greeley, CO

Saturday, September 12th, 2026

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Black Squirrel Half Marathon

Bellvue, CO

Saturday, September 12th, 2026

Half

Trail

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Jungle Dash

Loveland, CO

Saturday, September 12th, 2026

1 Mile

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RMRR Fall Marathon Training Series #2

Thornton, CO

Sunday, September 13th, 2026

Ultra

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9/11 Heroes Run - Denver, Colorado

Denver, CO

Sunday, September 13th, 2026

1 Mile

View details for race 9/11 Heroes Run - Denver, Colorado

Buffalo Bicycle Classic

Boulder, CO

Sunday, September 13th, 2026

Ultra

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Honey Bee Hustle

Loveland, CO

Sunday, September 13th, 2026

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Healthy Kids Running Series Fall 2026 - Denver, CO

Denver, CO

Sunday, September 13th, 2026

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

RMRR September 5k/10k

Thornton, CO

Sunday, September 13th, 2026

10K

Fast

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Tiger Prowl 5K

Denver, CO

Sunday, September 13th, 2026

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Severance Glow 5K Run or Walk

Severance, CO

Friday, September 18th, 2026

Trail

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Wellington STAR Foundation 5K 10K

Wellington, CO

Saturday, September 19th, 2026

10K

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All-Out Fall Fest

Westminster, CO

Saturday, September 19th, 2026

Half

10K

Trail

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Lederhosen Race 2026

Red Feather Lakes, CO

Saturday, September 19th, 2026

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Gummball 5K

Brighton, CO

Saturday, September 19th, 2026

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Denver: Walk With Autism and Resource Fair

Denver, CO

Saturday, September 19th, 2026

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Dog Jog

Cheyenne, WY

Sunday, September 20th, 2026

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Farmers 5000

Wheat Ridge, CO

Sunday, September 20th, 2026

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Fall Equinox

Fort Collins, CO

Sunday, September 20th, 2026

Half

Fast

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Red Feather Trail Jamboree

Red Feather Lakes, CO

Friday, September 25th, 2026

Ultra

Half

Trail

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Estes Epic

Estes Park, CO

Saturday, September 26th, 2026

Ultra

Trail

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NIGHT NATION RUN - DENVER

Commerce City, CO

Saturday, September 26th, 2026

View details for race NIGHT NATION RUN - DENVER

Runway 5K - Run for the Angels

Broomfield, CO

Saturday, September 26th, 2026

View details for race Runway 5K - Run for the Angels

RMRR Fall Marathon Training Series #3

Thornton, CO

Sunday, September 27th, 2026

10 Miles

Ultra

View details for race RMRR Fall Marathon Training Series #3

Pat Mahan Memorial Foundation 5K

Wiggins, CO

Sunday, September 27th, 2026

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Joy & Justice 5k

Timnath, CO

Sunday, September 27th, 2026

1 Mile

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Running for Children's Rights to Both Parents -...

Boulder, CO

Sunday, September 27th, 2026

Half

10K

View details for race Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado

Homecoming 5K - Colorado State University

Fort Collins, CO

Saturday, October 3rd, 2026

View details for race Homecoming 5K - Colorado State University

I Can 5k

Thornton, CO

Saturday, October 3rd, 2026

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PRA Miner Gold Rush

Broomfield, CO

Saturday, October 3rd, 2026

1 Mile

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Lafayette Music Fest -5K - 10K

Lafayette, CO

Saturday, October 3rd, 2026

10K

View details for race Lafayette Music Fest -5K - 10K

The Ruff Run

Loveland, CO

Saturday, October 3rd, 2026

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Spooky Sprint - Denver

Denver, CO

Saturday, October 3rd, 2026

1 Mile

10K

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Big Waves Family 5K run/walk Presented by Brumate

Westminster, CO

Saturday, October 3rd, 2026

View details for race Big Waves Family 5K run/walk Presented by Brumate

Windsor Marathon, Half Marathon, 10k, 5k & 1 Mi...

Windsor, CO

Sunday, October 4th, 2026

Marathon

Half

10K

Trail

View details for race Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run

Footsteps for Families 5k Fun Run & Concert

Windsor, CO

Saturday, October 10th, 2026

View details for race Footsteps for Families 5k Fun Run & Concert

The Long View Marathon

Fort Collins, CO

Saturday, October 10th, 2026

Marathon

Half

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Westy Half & 5k

Westminster, CO

Sunday, October 11th, 2026

Half

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Living Water 5K Fun Run

Denver, CO

Saturday, October 17th, 2026

View details for race Living Water 5K Fun Run

Blue Sky Trail Marathon & Half Marathon

Fort Collins, CO

Saturday, October 17th, 2026

Trail

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Race to Cure Sarcoma Denver

Denver, CO

Saturday, October 24th, 2026

View details for race Race to Cure Sarcoma Denver

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