Estes Park
Triathlon Calendar near Estes Park 2026-2027
Monthly updates for Estes Park
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Estes Park for 2026-2027! We've gathered 4 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Experience two days of mountain endurance in Estes Park with mountain bike and trail running races including a 50K ultra and the 100K Epic Double.
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
Swimrun at over 5,000 feet near Fort Collins combining open water swims in Horsetooth Reservoir and trail running in Lory State Park across three distances.
June 2027
IRONMAN 70.3 Boulder on June 12, 2027 features a reservoir swim, hilly bike and run at higher elevation near the Flatirons.
Monthly updates for Estes Park
Get new running races (and updates) in your inbox every month.