Upcoming Races Near Denver, CO in April, 2026

Three Creeks Half Marathon

Englewood, CO

Sunday, April 5th, 2026

Featured

Half

Trail

Fast

View details for race Three Creeks Half Marathon

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Hot Laps - Denver

Denver, CO

Thursday, April 9th, 2026

View details for race Hot Laps - Denver

Run the Ranch

Loveland, CO

Friday, April 10th, 2026

10K

5K

Trail

View details for race Run the Ranch

Dash for Detection: Oral Cancer Awareness 5K

Denver, CO

Saturday, April 11th, 2026

5K

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

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

Rockin on the River 5K

Littleton, CO

Saturday, April 11th, 2026

5K

View details for race Rockin on the River 5K

Hop Into Spring 5K - Denver

Denver, CO

Sunday, April 12th, 2026

5K

View details for race Hop Into Spring 5K - Denver

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

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

View details for race Platte River Half-Marathon and Relay

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

Prairie Dog Run Series

Louisville, CO

Sunday, April 12th, 2026

Half

View details for race Prairie Dog Run Series

Donut Dash

Denver, CO

Sunday, April 12th, 2026

5K

Fast

View details for race Donut Dash

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

All-Out Beat the Heat

Westminster, CO

Saturday, April 18th, 2026

Half

10K

5K

Trail

View details for race All-Out Beat the Heat

Kerr Gulch Amble

Evergreen, CO

Saturday, April 18th, 2026

View details for race Kerr Gulch Amble

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

Littleton, CO

Sunday, April 19th, 2026

5K

10K

1 Mile

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

2026 Fairmount Fit Fest

Golden, CO

Sunday, April 19th, 2026

5K

View details for race 2026 Fairmount Fit Fest

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

5K

Fast

View details for race Blue Heron Half & 5K

Unicorn 5k (Denver-East)

Denver, CO

Sunday, April 26th, 2026

5K

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

Dash & Dine 5k

Boulder, CO

Tuesday, April 28th, 2026

5K

View details for race Dash & Dine 5k

Explore more in Denver, CO

Distances:

5K 10K Half Marathon Marathon

Months:

February March April

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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