Triathlon Calendar near Estes Park 2025-2026

Sep

27-28

Sa - Su

Estes Epic

Estes Park

Trail Run Cross Duathlon Half Marathon 50 km

Estes Epic is a multi-event trail challenge held in Estes Park, Colorado. The weekend features a 50k bike race, a 50k trail run, a Heavy Half Marathon, and the all-in Epic Double (50k MTB and 50k Run)..

Oct

5

Sunday

ÖTILLÖ Colorado USA

Fort Collins | 27 mi from Estes Park

Aquathlon

ÖTILLÖ Colorado USA unfolds in the Fort Collins area, using Horsetooth Reservoir and Lory State Park for a swimrun playground of lakes, ridges, and forest trails. The event offers three formats: Color..

Jun

13

Saturday

Ironman 70.3 Boulder

Boulder | 28 mi from Estes Park

Triathlon