Idaho
Idaho Triathlon Calendar 2025-2026
Monthly updates for Idaho
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Explore the best triathlons in Idaho for 2025-2026! Our updated list features 9 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!
June 2026
Race a fast, flat triathlon along the Boise River on June 6, 2026, with swim, bike and run distances for all levels. USAT sanctioned as the Idaho State Championship, the event features relays, youth and adaptive categories.
Experience IRONMAN 70.3 Coeur d'Alene with a 1.2 mile swim in Lake Coeur d'Alene, a 56 mile bike through rolling Idaho terrain and a 13.1 mile run along scenic lakeside paths. The race offers World Championship qualification and a top ranked swim cou..
July 2026
Race the Hayden Sprint Triathlon at Honeysuckle Beach in Hayden, Idaho on July 11, 2026. Solo, relay, Athena and Clydesdale categories welcome, and all proceeds support local community causes.
Experience the inaugural IRONMAN 70.3 Boise on July 25, 2026, a scenic race through Boise and its foothills with a reservoir swim, hilly bike and flat run. This world championship qualifier blends urban views and rugged local scenery for a memorable..
August 2026
Experience the Scenic Challenge at Coeur d'Alene Triathlon 2026 with triathlon, duathlon and sprint distances around Lake Coeur d'Alene. Swim from a cruise ship, bike scenic lakeside roads and finish at City Park along the Centennial Trail.
Make waves at the Priest Lake Triathlon on August 30, 2026 in Idaho, with sprint and team relay options on both road and off road courses. Scenic lake views and choices for solo or relay racers make this a must do summer challenge.
September 2026
Paddle and run at scenic Higgens Point and Blue Creek Bay in Coeur d'Alene, choose kayak or SUP with short and long course options for solo racers or teams. Enjoy post race food, awards, and support Companions Animal Shelter.
Challenge yourself at the Bear Lake Brawl Triathlon in St Charles Idaho, held at scenic Bear Lake State Park. Choose from sprint to full distance, plus relays, single discipline races and a virtual option for every athlete.
October 2026
Join a scenic point to point tri through Idaho high country on October 3, 2026, from Warm Lake to Yellow Pine. Individual, relay and adaptive teams welcome with free local camping and an after party in Yellow Pine.