Race Calendar in Colorado, United States

Hahns Peak Vertical Trail Race

Clark, Colorado, United States

05 Jul, 2026 (Sun)

$40.00

Running

12.9K

HRCA Rocky Gulch Circuit

Highlands Ranch, Colorado, United States

08 Jul, 2026 (Wed)

Women's Specific High Trails Trail Running Retreat

Buena Vista, Colorado, United States

09 Jul, 2026 (Thu) – 12 Jul, 2026

BRR All-Comers Summer Track & Field Series #3

Boulder, Colorado, United States

09 Jul, 2026 (Thu)

$20.00

Running

Ultra 1.6K 5K +1

July 9 - Beg & Skills / Advanced @ Palmer Park

Colorado Springs, Colorado, United States

09 Jul, 2026 (Thu)

July 9 - Intermediate @ Austin Bluffs Open Space

Colorado Springs, Colorado, United States

09 Jul, 2026 (Thu)

Silverheels Trail Runs

Como, Colorado, United States

10 Jul, 2026 (Fri) – 11 Jul, 2026

$80.00 - $385.00

Trail running

Ultra 17.4K 30.7K +2

Paint the Prairie

Aurora, Colorado, United States

11 Jul, 2026 (Sat)

$15.00

Running

1.6K

Pagosa Duathlon

Pagosa Springs, Colorado, United States

11 Jul, 2026 (Sat)

$15.00 - $55.00

Duathlon

35.4K 17.7K 4.8K

Heatwave Half Marathon - Denver

Littleton, Colorado, United States

11 Jul, 2026 (Sat)

$22.00 - $73.00

Running

1.6K 5K 10K Half-Marathon +1

The Triple Bypass

Evergreen, Colorado, United States

11 Jul, 2026 (Sat)

$265.00

Cycling

Ultra

All-Out Dog Days

Westminster, Colorado, United States

11 Jul, 2026 (Sat)

$35.00 - $80.00

Running

Half-Marathon 10K 5K +2