Upcoming Triathlons in Colorado

Endurance Grid lists 9 triathlons in Colorado, from August 2026 to January 2027 across 9 cities.

9
Races
9
Cities

The lay of the land

Triathlon Races in Colorado

The triathlon race calendar in Colorado is busiest in September, August, and January, with races most often in Colorado Springs, Durango, Littleton, and Pueblo.

What a triathlon is

A triathlon is three sports in one race — swim, then bike, then run, back to back, with two timed transitions in between. The sprint distance — a 750m swim, 20K bike, and 5K run — makes the sport more accessible than most people think.

The swim start is exciting and chaotic but finds a rhythm fast; the bike course is usually quiet; the run brings the crowds and the finish line. Beyond fitness, the transitions between disciplines are their own skill.

Frequently Asked Questions (FAQs)

How many triathlons are in Colorado?+
Endurance Grid's Race Calendar lists 9 upcoming triathlons in Colorado across 9 cities, from August 2026 to January 2027.
What triathlon distances are offered in Colorado?+
Triathlons in Colorado include Olympic and Sprint distances.
When is triathlon season in Colorado?+
Triathlon season in Colorado runs spring through fall — the warmer months when open water is race-ready. Of the upcoming triathlons on Endurance Grid's Race Calendar, the most are in September and August.
Which Colorado cities have triathlons?+
Triathlons in Colorado are held in Alamosa, Alma, Colorado Springs, Durango, Gunnison, Littleton, Montrose, Pueblo, and U S A F Academy.

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