Upcoming Races Near Allenspark, CO

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Pioneer Prairie Dog Half, 10k & 5k

Westminster, CO

Sunday, August 23rd, 2026

Half

10K

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

Rebel Run 5k

Denver, CO

Sunday, August 23rd, 2026

View details for race Rebel Run 5k

Eltuck Valley 12K - Lory Summer Trail Series

Bellvue, CO

Tuesday, August 25th, 2026

12K

Trail

Fast

View details for race Eltuck Valley 12K - Lory Summer Trail Series

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

RMRR Fall Marathon Training Series

Thornton, CO

Sunday, August 30th, 2026

10 Miles

Ultra

View details for race RMRR Fall Marathon Training Series

Demon Dash

Arvada, CO

Saturday, September 5th, 2026

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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

Cirque Series - Arapahoe Basin, CO

Keystone, CO

Saturday, September 5th, 2026

Trail

View details for race Cirque Series - Arapahoe Basin, CO

Raising the Barr

Brighton, 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

FCA All-Abilities Labor Day 5K

Loveland, CO

Monday, September 7th, 2026

1 Mile

View details for race FCA All-Abilities Labor Day 5K

FCA All Abilities Labor Day 5K

Loveland, CO

Monday, September 7th, 2026

View details for race FCA All Abilities Labor Day 5K

14th Annual Superhero Event

Greeley, CO

Thursday, September 10th, 2026

10K

1 Mile

View details for race 14th Annual Superhero Event

For The City Network 5K

Greeley, CO

Saturday, September 12th, 2026

View details for race For The City Network 5K

Jungle Dash

Loveland, CO

Saturday, September 12th, 2026

1 Mile

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Black Squirrel Half Marathon

Bellvue, CO

Saturday, September 12th, 2026

Half

Trail

View details for race Black Squirrel Half Marathon

The Denver 5k

Denver, CO

Saturday, September 12th, 2026

View details for race The Denver 5k

RMRR Fall Marathon Training Series #2

Thornton, CO

Sunday, September 13th, 2026

Ultra

View details for race RMRR Fall Marathon Training Series #2

Tiger Prowl 5K

Denver, CO

Sunday, September 13th, 2026

View details for race Tiger Prowl 5K

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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RMRR September Trophy Series

Thornton, CO

Sunday, September 13th, 2026

10K

Fast

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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

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

Severance Glow 5K Run or Walk

Severance, CO

Friday, September 18th, 2026

Trail

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All-Out Fall Fest

Westminster, CO

Saturday, September 19th, 2026

Half

10K

Trail

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Wellington STAR Foundation 5K 10K

Wellington, CO

Saturday, September 19th, 2026

10K

View details for race Wellington STAR Foundation 5K 10K

Lederhosen Race 2026

Red Feather Lakes, CO

Saturday, September 19th, 2026

View details for race Lederhosen Race 2026

Denver: Walk With Autism and Resource Fair

Denver, CO

Saturday, September 19th, 2026

View details for race Denver: Walk With Autism and Resource Fair

Gummball 5K

Brighton, CO

Saturday, September 19th, 2026

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Farmers 5000

Wheat Ridge, CO

Sunday, September 20th, 2026

View details for race Farmers 5000

20th Annual Golden Gallop

Golden, CO

Sunday, September 20th, 2026

10K

Trail

View details for race 20th Annual Golden Gallop

Fall Equinox

Fort Collins, CO

Sunday, September 20th, 2026

Half

Fast

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CG Adventure Club - Elevation Everest

Winter Park, CO

Wednesday, September 23rd, 2026

Trail

View details for race CG Adventure Club - Elevation Everest

Red Feather Trail Jamboree

Red Feather Lakes, CO

Friday, September 25th, 2026

Ultra

Half

Trail

View details for race Red Feather Trail Jamboree

Lisa Nelson’s Mustang Stampede 5K

Arvada, CO

Saturday, September 26th, 2026

View details for race Lisa Nelson’s Mustang Stampede 5K

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

Estes Epic

Estes Park, CO

Saturday, September 26th, 2026

Ultra

Trail

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Joy & Justice 5k

Timnath, CO

Sunday, September 27th, 2026

1 Mile

View details for race Joy & Justice 5k

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

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

The Ruff Run

Loveland, CO

Saturday, October 3rd, 2026

View details for race The Ruff Run

Lafayette Music Fest -5K - 10K

Lafayette, CO

Saturday, October 3rd, 2026

10K

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

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

Spooky Sprint - Denver

Denver, CO

Saturday, October 3rd, 2026

1 Mile

10K

View details for race Spooky Sprint - Denver

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

View details for race I Can 5k

PRA Miner Gold Rush

Broomfield, CO

Saturday, October 3rd, 2026

1 Mile

View details for race PRA Miner Gold Rush

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

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