Upcoming Triathlons in Colorado

Mini Mortals Triathlon

Pueblo, CO

May 18, 2025

Youth

Register

Boulder Stroke & Stride Series #1

Boulder, CO

June 5, 2025

Aquathlon

Register

Colorado Triathlon

Boulder, CO

June 7, 2025

OlympicSprintAquabikeDuathlon

Register

Boulder Stroke & Stride Series #2

Boulder, CO

June 11, 2025

Aquathlon

Register

San Juan Trail Tri

Ridgway, CO

June 14, 2025

Dry Tri

Register

IRONMAN 70.3 Boulder

Boulder, CO

June 14, 2025

Half Iron

Register

Boulder Stroke & Stride Series #3

Boulder, CO

June 19, 2025

Aquathlon

Register

XTERRA Lory

Bellvue, CO

June 21, 2025

OlympicDry Tri

Register

Loveland Lake to Lake Triathlon

Loveland, CO

June 21, 2025

OlympicSprintAquabike

Register

Boulder Stroke & Stride Series #4

Boulder, CO

June 26, 2025

Aquathlon

Register

SUP-Athlon

Georgetown, CO

July 4, 2025

Dry Tri

Register

Sheep Creek Triathlon

Antonito, CO

July 5, 2025

Sprint

Register

The Alma Foundation Race in the Clouds Dirt Festival

Alma, CO

July 10, 2025

Duathlon

Register

Boulder Stroke & Stride Series #5

Boulder, CO

July 10, 2025

Aquathlon

Register

Boulder Peak Triathlon

Boulder, CO

July 13, 2025

OlympicDuathlonAquabike

Register

Boulder Stroke & Stride Series #6

Boulder, CO

July 17, 2025

Aquathlon

Register

Parker Parks and Recreation Kids' TRY-athlon

Parker, CO

July 19, 2025

Youth

Register

Tri Boulder Sprint and Olympic Triathlon

Boulder, CO

July 19, 2025

OlympicSprintAquabikeDuathlon

Register

Boulder Stroke & Stride Series #7

Boulder, CO

July 24, 2025

Aquathlon

Register

Steamboat Lake Sprint Triathlon

Steamboat Lake, CO

July 27, 2025

SprintAquabikeDry Tri

Register

Boulder Stroke & Stride Series #8

Boulder, CO

July 31, 2025

Aquathlon

Register

HRCA Splash Mash Dash Kids Triathlon

Littleton, CO

August 2, 2025

Youth

Register

Stagecoach Gravel Triathlon

Steamboat Springs, CO

August 3, 2025

SprintAquabikeDry TriDuathlon

Register

Boulder Stroke & Stride Series #9

Boulder, CO

August 7, 2025

Aquathlon

Register

Outdoor Divas Sprint Triathlon

Longmont, CO

August 10, 2025

Sprint

Register

Gunnison Valley Triathlon

Gunnison, CO

August 23, 2025

Sprint

Register

Littlefoot Triathlon

Morrison, CO

September 6, 2025

Sprint

Register

Splashland Triathlon

Alamosa, CO

September 13, 2025

Sprint

Register

Oktoberfest Sprint Triathlon

Longmont, CO

September 21, 2025

SprintDry Tri

Register

Black Canyon Triathlon

Montrose, CO

September 27, 2025

SprintYouth

Register

Last Call Triathlon

Loveland, CO

September 28, 2025

SprintSuper SprintDry TriDuathlonAquabikeAquathlon

Register