Running Race Calendar in Colorado, United States

PNAAF 5K Wellness Challenge

Colorado Springs, Colorado, United States

Jul 16, 2026 (Thu)

Running

5K

RMRR July Trophy Series

Lakewood, Colorado, United States

Jul 12, 2026 (Sun)

Running

3.2K

Heatwave Half Marathon - Colorado Springs

Colorado Springs, Colorado, United States

Jul 12, 2026 (Sun)

Running

1.6K 5K 10K Half-Marathon +1

Grin & Bear It

Crested Butte, Colorado, United States

Jul 11, 2026 (Sat)

Running, Cycling

25K 15K 23.9K

All-Out Dog Days

Westminster, Colorado, United States

Jul 11, 2026 (Sat)

Running

Half-Marathon 10K 5K +2

Heatwave Half Marathon - Denver

Littleton, Colorado, United States

Jul 11, 2026 (Sat)

Running

1.6K 5K 10K Half-Marathon +1

Cookie Chase

Denver, Colorado, United States

Jul 11, 2026 (Sat)

Running

5K

Paint the Prairie

Aurora, Colorado, United States

Jul 11, 2026 (Sat)

Running

1.6K

BRR All-Comers Summer Track & Field Series #3

Boulder, Colorado, United States

Jul 9, 2026 (Thu)

Running

Ultra 1.6K 5K +1

Hahns Peak Vertical Trail Race

Clark, Colorado, United States

Jul 5, 2026 (Sun)

Running

12.9K

Independence Day Freedom 5K

Buena Vista, Colorado, United States

Jul 4, 2026 (Sat)

Running

5K 3K

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

Centennial, Colorado, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2