Fort Collins
Triathlon Calendar near Fort Collins 2026-2027
Monthly updates for Fort Collins
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Explore the top triathlons near Fort Collins for 2026-2027! We've gathered 3 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
A two-day trail and bike event in Estes Park featuring 31-mile bike and run options, a 15-mile heavy half, and a 62-mile duathlon, with rugged trails, significant climbs, and aid stations supporting competitors.
A lakeside multi discipline event at Boyd Lake State Park on September 27, 2026 offering sprint, supersprint, duathlon, aquabike, aquathlon and SUP race options.
October 2026
ÖTILLÖ Colorado USA is a high altitude swimrun in Fort Collins combining open-water swims at Horsetooth Reservoir with trail runs in Lory State Park across three distances.