Race Calendar in Colorado, United States

11th Annual Log Hill Hustle

Ridgway, Colorado, United States

Aug 23, 2026 (Sun)

$40.00

Running, Wheelchair

5K 10K

Rumble at the Ranch - 6 Hour MTB Relay

Highlands Ranch, Colorado, United States

Aug 23, 2026 (Sun)

Rebel Run 5k

Denver, Colorado, United States

Aug 23, 2026 (Sun)

$10.00 - $50.00

Running, Walking

5K

Rmrr Fall Marathon Training Series

Thornton, Colorado, United States

Aug 23, 2026 (Sun) – Sep 20, 2026

$20.00 - $75.00

Running

16.1K 32.2K

Pioneer Prairie Dog Half, 10k & 5k

Westminster, Colorado, United States

Aug 23, 2026 (Sun)

$45.00 - $85.00

Running

Half-Marathon 10K 5K

Eltuck Valley 12K - Lory Summer Trail Series

Bellvue, Colorado, United States

Aug 25, 2026 (Tue)

$30.00

Trail running

12K

Aug 27 - All groups @ Red Rocks (different meeting point for Adv) - 5:30 pm start!

Colorado Springs, Colorado, United States

Aug 27, 2026 (Thu)

Unbridled Golf Classic

Castle Rock, Colorado, United States

Aug 27, 2026 (Thu)

Continental Divide Trail Run

Steamboat Springs, Colorado, United States

Aug 29, 2026 (Sat)

Trail running

8K 25.7K Ultra

Rocky Mountain 5K presented by School District 11

Colorado Springs, Colorado, United States

Aug 29, 2026 (Sat)

Free - $40.00

Running

5K 1K

Flyin' Lion 5K

Littleton, Colorado, United States

Aug 29, 2026 (Sat) – Sep 27, 2026

$5.00 - $30.00

Running

5K 1.6K +3

Glow & Roll: Illuminate What's Possible

Littleton, Colorado, United States

Aug 29, 2026 (Sat)

$65.00

Running

5K 2.6K