5K races in Colorado, United States — 2026 running calendar

Strawberry Shortcut

Glenwood Springs, Colorado, United States

Jun 21, 2026 (Sun)

Running

10K 5K 1.6K

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

Boulder, Colorado, United States

Jun 21, 2026 (Sun)

Running

5K

Juneteenth Fun Run 5K

Denver, Colorado, United States

Jun 21, 2026 (Sun)

Running

5K

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

Arvada, Colorado, United States

Jun 21, 2026 (Sun)

Running

10K 5K 1.6K +2

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

Boulder, Colorado, United States

Jun 21, 2026 (Sun)

Running

5K

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

Windsor, Colorado, United States

Jun 20, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

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

Parker, Colorado, United States

Jun 20, 2026 (Sat)

Running

5K

Fatherhood 5k Family Run/Walk

Colorado Springs, Colorado, United States

Jun 20, 2026 (Sat)

Running

5K

Sierra's 5K Run/Walk Race Against Meningitis

Loveland, Colorado, United States

Jun 20, 2026 (Sat)

Running

5K

Run for the River 5k Boulder

Boulder, Colorado, United States

Jun 20, 2026 (Sat)

Running

5K

Doggie Dash

Colorado Springs, Colorado, United States

Jun 20, 2026 (Sat)

Running

5K

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

Centennial, Colorado, United States

Jun 20, 2026 (Sat) – Aug 29, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8