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Triathlon Calendar near Berthoud 2026-2027

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Explore the top triathlons near Berthoud for 2026-2027! We've gathered 5 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 multi-format race day at Boyd Lake State Park with triathlon, SUP, duathlon, aquabike, and aquathlon options, onsite camping and spectator-friendly looped courses.
October 2026
A high altitude swimrun in Fort Collins combining open water swims in Horsetooth Reservoir with trail runs in Lory State Park across three distances.
Mini Tri comp only on October 31, 2026 in Fort Lupton features 15 minute swim bike run slots, combined time scoring, and prizes for fastest time and costumes.
June 2027
IRONMAN 70.3 Boulder on June 12, 2027 features a reservoir swim, hilly bike and run at higher elevation near the Flatirons.
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