5K Races in Colorado.

Berthoud Day 5K

Aiden's Adventure 5k

Grand Valley Oncology - Life In Color 5K

Run for Breast Cancer 5K/10K/13.1 DENVER/AURORA

SuperHeroes Run 5K/10K/13.1 DENVER/AURORA

Colorado 13er (Half Marathon/10k/5k)

Flamingo Day 5K

Stepping Stone 5K

Tutu Dash 5K

St Mary's Church "Loop the Lake 5K" at Lathrop State Park

Parker Parks and Recreation Dash Across the Dam Father’s Day 5K

Fatherhood 5k Family Run/Walk

Red, White and Brew 5k, 10k & Half Marathon

Run for the River 5k Boulder

Run Juneteenth Day 5K/10K/13.1 DENVER/AURORA

Sierra's 5K Run/Walk Race Against Meningitis

Sloth Run 5K/10K/13.1 DENVER/AURORA

Unicorn 5k (North)

14th Annual Buffs4Life Kyle MacIntosh Memorial 5K Run/Walk

Father's Day Classic 10k, 5k, & 1 Mile

Juneteenth Fun Run 5K

Denver Pride 5K

Before The Fourth 5k

Burro Buster 5k

FireKracker 5k

Greeley Freedom 5k Walk & Run

HRCA Independence Day 5K

Independence Day Freedom 5K

July 4th Run 5K/10K/13.1 DENVER/AURORA

Let Freedom Run 5k - LONGMONT

Let Freedom Run 5k/10k - Louisville

Loveland Liberty 5K

Pueblo's Firecracker 5k!

Run For Your Life 5K

Red, White, and WARRIOR 5K

Run for Chocolate 5K/10K/13.1 DENVER/AURORA

DRMABPsi 1–5K Walk, Run & Roll

PNAAF 5K Wellness Challenge

2026 OCA Colorado 5K Panda Run

Festival in the Clouds Firefighter 5K, Fun Run and Doggie Dash

Heritage Eagles 5K

Summer Splash Prairie Dog Half, 10k, & 5k

49th Annual Manassa Pioneer Days 5K Run

Flyin' Ryan Memorial 5k

2nd Annual Pancreatic Cancer Awareness in Honor of Diana Cantu - 5K Fun Run/Walk

Newbie to 5k

Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA

Run for Donuts 5K/10K/13.1 DENVER/AURORA