Idaho
Idaho Triathlon Calendar 2026-2027
Monthly updates for Idaho
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Explore the best triathlons in Idaho for 2026-2027! Our updated list features 16 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!
April 2026
Join this unique sprint triathlon in Pocatello featuring a seeded time trial start and multiple event formats including duathlon, aquabike, and a 5K run across the Idaho State University campus.
June 2026
Experience a fast and flat circuit style triathlon along the scenic Boise River. This inclusive event features Olympic, Sprint, and Adaptive distances and serves as a USAT Para National Qualifier.
Take on the Blackfoot KICKER Triathlon at Jensen Grove in Blackfoot, ID on June 13, 2026. Choose from sprint to Olympic distances, duathlon and run only options, or join a two person sprint team for a fast, fun race day.
A triathlon at Deyo Reservoir near Weippe, Idaho on June 14, 2026, with a 300 yard swim, about 13 miles of mountain biking and a 2.2 mile run around the reservoir. Single transition area, limited parking and nearby camping.
Experience an iconic triathlon in Idaho featuring an award winning lake swim and a scenic bike course through rolling hills. This event offers a walkable transition area and serves as a World Championship qualifier.
July 2026
Experience a community focused triathlon at Honeysuckle Beach in Hayden. This non profit event features individual and relay options along with inclusive categories like Team Hoyt and Athena divisions.
Join the Rigby Lake RUMBLE Triathlon on July 11 2026 at Jefferson County Lake for sprint and Olympic distances plus runs and two person teams. Expect a flat, fast course, comfy lake swims, and supportive volunteers.
Experience the inaugural Ironman 70.3 Boise featuring a reservoir swim and a scenic bike through the foothills. Finish your race with a flat run along the greenbelt in the heart of Idaho.
August 2026
This multi-sport event in Post Falls offers sprint triathlon and duathlon options for individuals and teams. The courses start and finish at Q’emiln Park, featuring a swim in the lake and a bike ride to the state border. Chip timing and an award cere..
Tackle a scenic multisport challenge in Coeur d'Alene. Choose from an Olympic triathlon with a unique deep-water start, a shorter Scenic Sprint, or a duathlon. All courses finish at City Park with a celebration.
Race the Great Snake River Triathlon in Idaho Falls on Aug 15 2026 with triathlon, duathlon and a 5K for all abilities. Youth divisions and sprint and Olympic distances make this Tri Peaks Epic Events day scenic and family friendly.
A one-day triathlon at Priest Lake on August 30, 2026, featuring sprint road bike and off road sprint races plus road bike and off road team relays. Published entry fees vary by event and increase after April 1, 2026.
September 2026
Experience a unique multisport charity event at Lake Coeur d'Alene combining kayaking or paddle boarding with a scenic run. Join as an individual or a team to support the local animal shelter at Higgens Point.
Experience the mountain scenery of Bear Lake State Park at this multi distance triathlon event. Choose from Sprint, Olympic, or Half distances and enjoy the blue waters of the Caribbean of the Rockies.
Join the Rexburg RUSH Triathlon at Wakeside Lake on September 19, 2026, with Sprint and Olympic triathlons plus duathlons and team options. Produced by TRI PEAKS EPIC EVENTS, this popular lakeside race welcomes all levels.
October 2026
Event Overview
The Idaho High Mountain Triathlon takes place in eastern Valley County, Idaho, connecting Warm Lake and Yellow Pine. The event is point-to-point, starting at Warm Lake (elevation 5,300 ft) and finishing in Yellow Pine (elevation ~4,900..