Nederland
Triathlon Calendar near Nederland 2026-2027
Monthly updates for Nederland
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Nederland for 2026-2027! We've gathered 3 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
A multi-format triathlon at Boulder Reservoir on August 29, 2026 featuring a sunrise swim, fast bike and smooth run with the Flatirons in view. Sprint, Olympic, aquabike, duathlon and relay options are available.
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.
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 Nederland
Get new running races (and updates) in your inbox every month.