Race Calendar in Colorado, United States

Jun

21

Juneteenth Fun Run 5K

Denver, Colorado, United States

Running

5K

Jun

20

Run for the River 5k Boulder

Boulder, Colorado, United States

Running

5K

Jun

20

Freedom Tour Classic

Fort Collins, Colorado, United States

Cycling Walking

Ultra 40.2K 24.1K 5K +2

Jun

20

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

Parker, Colorado, United States

Running

5K

Jun

20

Mustang Mile 2026

Kremmling, Colorado, United States

Running

1.6K

Jun

20

Sloth Run 5K/10K/13.1 Denver/Aurora

Centennial, Colorado, United States

Running

5K 10K Half-Marathon 1.6K +8

Jun

20

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

Centennial, Colorado, United States

Running

5K 10K Half-Marathon 1.6K +2

Jun

20

Havoc at HartFit OCR 3k

Peyton, Colorado, United States

Obstacle race

3K 1.6K

Jun

20

Doggie Dash

Colorado Springs, Colorado, United States

Running

5K

Jun

20

Sierra's 5K Run/Walk Race Against Meningitis

Loveland, Colorado, United States

Running

5K

Jun

20

Fatherhood 5k Family Run/Walk

Colorado Springs, Colorado, United States

Running

5K

Jun

20

Fcrc Marathon Training Program

Fort Collins, Colorado, United States

Running

FCRC 2026 Marathon Training Program