Race Calendar in Colorado, United States

Autumn Run

Buena Vista, Colorado, United States

19 Sep, 2026 (Sat)

Free - $90.00

Running

Half-Marathon 10K 5K 1K

Beulah Challenge and OverIt Series

Beulah, Colorado, United States

19 Sep, 2026 (Sat)

$20.00 - $180.00

Running

Half-Marathon 10K 5K +2

Fall Equinox

Fort Collins, Colorado, United States

20 Sep, 2026 (Sun) – 03 Oct, 2026

$50.00 - $135.00

Running

Half-Marathon 8K

20th Annual Golden Gallop

Golden, Colorado, United States

20 Sep, 2026 (Sun)

$40.00 - $45.00

Running

5K 10K 20K

Chile & Frijole Hot to Trot 5K & 10K

Pueblo, Colorado, United States

20 Sep, 2026 (Sun)

$35.00 - $40.00

Running

5K 10K

Farmers 5000

Wheat Ridge, Colorado, United States

20 Sep, 2026 (Sun)

$10.00 - $30.00

Running

5K +1

Pikes Peak Marathon

Manitou Springs, Colorado, United States

20 Sep, 2026 (Sun)

Free - $225.00

Running

Marathon

CG Adventure Club - Elevation Everest

Winter Park, Colorado, United States

23 Sep, 2026 (Wed) – 27 Sep, 2026

$150.00 - $400.00

Running

35.4K Ultra

Boggy Draw Bear Chase

Dolores, Colorado, United States

25 Sep, 2026 (Fri)

Running

3K 5K

Red Feather Trail Jamboree

Red Feather Lakes, Colorado, United States

25 Sep, 2026 (Fri) – 27 Sep, 2026

$100.00 - $300.00

Trail running

Ultra Half-Marathon

Mountains to the Desert Classic

Telluride, Colorado, United States

26 Sep, 2026 (Sat)

$185.00

Cycling

Ultra

25th Annual Black Canyon Triathlon

Montrose, Colorado, United States

26 Sep, 2026 (Sat)