Colorado Triathlon Calendar 2025-2026

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Explore the best triathlons in Colorado for 2025-2026! Our updated list features 4 exciting races across the state. Find your next race in Colorado below and join the running community at these great events!

February 2025
Feb
22
Saturday

Chilly Cheeks Duathlon

Duathlon
May 2025
May
10
Saturday

Ordinary Mortals Triathlon

Triathlon
June 2025
Jun
14
Saturday

Ironman 70.3 Boulder

Triathlon
Jun
21
Saturday

Xterra Lory

Cross Triathlon
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