Duathlon Race Calendar in Colorado, United States

Oct

18

Fall Harvesr Kids Duathlon

Colorado Springs, Colorado, United States

$35.00

Duathlon

Kids Duathlon

Feb

20

Chilly Cheeks Duathlon

Englewood, Colorado, United States

$65.00 - $90.00

Duathlon

Individual Duathlon Duathlon Relay Approved Youth Duathlon

Mar

28

The Grand Traverse

Crested Butte, Colorado, United States

$205.00 - $650.00

Skiing Triathlon Running Duathlon Mountain biking

Ultra +1

Jun

06

Summer Vibes Bike Rally & Run Festival

Lyons, Colorado, United States

$129.00

Gravel biking Cycling Duathlon Running

Ultra BMX Summer Series Comp Run / Bike Combo Altra Trail Run Relay +4

Jun

24

Race in the Clouds - Alma Dirt Festival

Alma, Colorado, United States

Free - $90.00

Running Mountain biking Duathlon Trail running

Weekend Camping FREE Kids Mountain Bike and Trail Run Ultra Marathon +7

Sep

26

Estes Epic

Estes Park, Colorado, United States

Mountain biking Duathlon Trail running

49.9K Ultra 24.1K

Jul

11

Pagosa Duathlon

Pagosa Springs, Colorado, United States

Duathlon

35.4K 17.7K 4.8K

Jun

13

Summer Kickoff Kids Duathlon 2026

Colorado Springs, Colorado, United States

Duathlon

3.2K