Race Calendar in Colorado, United States

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

Centennial, Colorado, United States

15 Aug, 2026 (Sat) – 10 Oct, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Miles for Migraine Colorado

Denver, Colorado, United States

15 Aug, 2026 (Sat)

Running

3.2K 5K

Sunrise Stampede

Longmont, Colorado, United States

15 Aug, 2026 (Sat)

Free - $25.00

Running

5K 1.6K +1

The Cheyenne Mountain Run

Colorado Springs, Colorado, United States

15 Aug, 2026 (Sat)

$45.00 - $95.00

Trail running

5K 10K 22.5K

Erie Half & 5k

Erie, Colorado, United States

16 Aug, 2026 (Sun)

$45.00 - $70.00

Running

Half-Marathon 5K

Into the Hills Eltuck 5k

Bellvue, Colorado, United States

18 Aug, 2026 (Tue)

$25.00

Trail running

5K

HRCA Wildcat Circuit

Highlands Ranch, Colorado, United States

19 Aug, 2026 (Wed)

Aug 20 - Advanced @ ABOS

Colorado Springs, Colorado, United States

20 Aug, 2026 (Thu)

Aug 20 - Intermediate @ Stratton

Colorado Springs, Colorado, United States

20 Aug, 2026 (Thu)

Aug 20 - Beginners @ Pineries

Colorado Springs, Colorado, United States

20 Aug, 2026 (Thu)

Staunton Rocks! Marathon and Half Marathon

Pine, Colorado, United States

22 Aug, 2026 (Sat)

$100.00 - $120.00

Running

Marathon Half-Marathon

2026 True Impact Ministries 5K/10K

Centennial, Colorado, United States

22 Aug, 2026 (Sat)

$39.00

Running

5K 10K