Upcoming Races Near Boulder, CO

Name: RMRR May Trophy Series
Start: 2026-05-03
End: 2026-05-03
Location: Denver

The City Park Circuit, Presented by New Balance

Denver, CO

Saturday, March 28th, 2026

Featured

View details for race The City Park Circuit, Presented by New Balance

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Cryogenic Cannibal Chase

Estes Park, CO

Saturday, March 28th, 2026

View details for race Cryogenic Cannibal Chase

New Terrain Table Traverse

Golden, CO

Sunday, March 29th, 2026

Trail

View details for race New Terrain Table Traverse

RMRR Spring Marathon Training Series #1

Thornton, CO

Sunday, March 29th, 2026

10 Miles

Ultra

View details for race RMRR Spring Marathon Training Series #1

Spring Equinox

Wellington, CO

Sunday, March 29th, 2026

Half

View details for race Spring Equinox

Dance Marathon 5K

Fort Collins, CO

Sunday, March 29th, 2026

View details for race Dance Marathon 5K

Cottonwood Glen T&H 12K

Fort Collins, CO

Sunday, March 29th, 2026

12K

View details for race Cottonwood Glen T&H 12K

Erie Easter Bunny Hop

Erie, CO

Saturday, April 4th, 2026

View details for race Erie Easter Bunny Hop

Three Creeks Half Marathon

Englewood, CO

Sunday, April 5th, 2026

Half

Trail

Fast

View details for race Three Creeks Half Marathon

Run the Ranch

Loveland, CO

Friday, April 10th, 2026

10K

Trail

View details for race Run the Ranch

CRMAC Uplift Her - 5K Run/Walk

Fort Collins, CO

Saturday, April 11th, 2026

View details for race CRMAC Uplift Her - 5K Run/Walk

RMRR Spring Marathon Training Series #2

Thornton, CO

Saturday, April 11th, 2026

10 Miles

Ultra

View details for race RMRR Spring Marathon Training Series #2

ASDAsh 5K to Beat Tooth Decay

Aurora, CO

Saturday, April 11th, 2026

View details for race ASDAsh 5K to Beat Tooth Decay

Dash for Detection: Oral Cancer Awareness 5K

Denver, CO

Saturday, April 11th, 2026

View details for race Dash for Detection: Oral Cancer Awareness 5K

Rockin on the River 5K

Littleton, CO

Saturday, April 11th, 2026

View details for race Rockin on the River 5K

Platte River Half-Marathon, Relay & 5k

Littleton, CO

Sunday, April 12th, 2026

Half

View details for race Platte River Half-Marathon, Relay & 5k

Boulder Track Series Meet 1

Longmont, CO

Sunday, April 12th, 2026

1 Mile

View details for race Boulder Track Series Meet 1

RMRR April Trophy Series

Denver, CO

Sunday, April 12th, 2026

View details for race RMRR April Trophy Series

Healthy Kids Running Series Spring 2026 - Fort ...

Fort Collins, CO

Sunday, April 12th, 2026

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

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

Prairie Dog Run Series

Louisville, CO

Sunday, April 12th, 2026

Half

View details for race Prairie Dog Run Series

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

Donut Dash

Denver, CO

Sunday, April 12th, 2026

Fast

View details for race Donut Dash

Hop Into Spring 5K - Denver

Denver, CO

Sunday, April 12th, 2026

View details for race Hop Into Spring 5K - Denver

Kerr Gulch Amble

Evergreen, CO

Saturday, April 18th, 2026

View details for race Kerr Gulch Amble

Great Western Trail Race

Severance, CO

Saturday, April 18th, 2026

10K

Half

Trail

View details for race Great Western Trail Race

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

1 Mile

10K

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

2026 Fairmount Fit Fest

Golden, CO

Sunday, April 19th, 2026

View details for race 2026 Fairmount Fit Fest

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

Westminster, CO

Sunday, April 19th, 2026

1 Mile

10K

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

Horsetooth Half Marathon - Presented by Fort Co...

Fort Collins, CO

Sunday, April 19th, 2026

Half

Trail

Fast

View details for race Horsetooth Half Marathon - Presented by Fort Collins Connexion

Hot Laps - Denver

Denver, CO

Friday, April 24th, 2026

View details for race Hot Laps - Denver

Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

View details for race Bigfoot Half Marathon

Runs With Scissors Races

Brighton, CO

Saturday, April 25th, 2026

Half

Marathon

Ultra

View details for race Runs With Scissors Races

NoCo Half Marathon & 10K

Loveland, CO

Saturday, April 25th, 2026

10K

Half

View details for race NoCo Half Marathon & 10K

Blue Heron Half & 5K

Brighton, CO

Sunday, April 26th, 2026

Half

Fast

View details for race Blue Heron Half & 5K

Unicorn 5k (Denver-East)

Denver, CO

Sunday, April 26th, 2026

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

2026 Flying Pig 5K

Fort Collins, CO

Sunday, April 26th, 2026

View details for race 2026 Flying Pig 5K

2026 Dash & Dine 5k Run Series

Boulder, CO

Tuesday, April 28th, 2026

View details for race 2026 Dash & Dine 5k Run Series

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

CollaBEERation 5k & Brew Fest Party

Longmont, CO

Saturday, May 2nd, 2026

View details for race CollaBEERation 5k & Brew Fest Party

22nd Annual Bob Turner Classic 5K Run/Walk

Berthoud, CO

Saturday, May 2nd, 2026

View details for race 22nd Annual Bob Turner Classic 5K Run/Walk

Adams County Foster Care 5K Run/Walk and 1 mile...

Brighton, CO

Saturday, May 2nd, 2026

1 Mile

View details for race Adams County Foster Care 5K Run/Walk and 1 mile fun run

High Line Canal 5K/10K Run

Centennial, CO

Saturday, May 2nd, 2026

10K

View details for race High Line Canal 5K/10K Run

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)

Rise Against Suicide’s Emerge 5K

Boulder, CO

Sunday, May 3rd, 2026

View details for race Rise Against Suicide’s Emerge 5K

2026 Altitude Elementary Moose Mudder

Aurora, CO

Sunday, May 3rd, 2026

View details for race 2026 Altitude Elementary Moose Mudder

RMRR May Trophy Series

Denver, CO

Sunday, May 3rd, 2026

Fast

View details for race RMRR May Trophy Series

Explore more in Boulder, CO

Distances:

5K 10K Half Marathon Marathon

Months:

April May June

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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