Race Calendar in Colorado, United States

Sep

26

NIGHT NATION RUN - DENVER

Commerce City, Colorado, United States

Running

5K

Sep

26

Mountains to the Desert Classic

Telluride, Colorado, United States

Cycling

Ultra

Sep

26

Mountain Marmot Trail Run presented by Durango Running Company

Durango, Colorado, United States

Trail running

19.3K

Sep

26

McGinn Memorial Cross Country Challenge

Pagosa Springs, Colorado, United States

Running

3K 5K

Sep

25

NW Open Spaces 5k XC PR Challenge

Northglenn, Colorado, United States

Running

5K BOYS VARSITY GIRLS VARSITY

Sep

25

Skate for Chicken

Colorado Springs, Colorado, United States

Running

2026 Skate for Chicken

Sep

25

Red Feather Trail Jamboree

Red Feather Lakes, Colorado, United States

Trail running

Ultra Half-Marathon

Sep

25

Dave Sanders Invitational

Littleton, Colorado, United States

Running

5K +7

Sep

25

Boggy Draw Bear Chase

Dolores, Colorado, United States

Running

3K 5K

Sep

24

Husky Hustle Invitational

Denver, Colorado, United States

Running

2.7K +1

Sep

23

CG Adventure Club - Elevation Everest

Winter Park, Colorado, United States

Running

35.4K Ultra

Sep

23

D51 Adaptive XC 200m

Grand Junction, Colorado, United States

Running

AXC200