Idaho
Idaho Triathlon Calendar 2026-2027
Monthly updates for Idaho
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Idaho for 2026-2027! Our updated list features 10 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!
August 2026
A family-friendly paddle and run duathlon at Esther Simplot Park with individual and two-person relay options, supporting Wild Hearts Idaho transportation programs for girls.
Multi sport event at Wilson Lake Reservoir on August 29 2026 offering triathlon, duathlon and 5K and 10K run options with chip timing and live music.
Sprint road bike and off road triathlons plus road and off road team relays take place at Hill's Resort in Priest Lake on 08/30/2026, with distinct fees and a specified registration window.
September 2026
A paddle-and-run event at Higgens Point, Coeur D Alene on September 12, 2026, with short and long courses offered for individuals and teams. Event proceeds benefit Companions Animal Shelter.
Sprint triathlon and duathlon in Moscow Idaho with a 500 yard pool swim, a 9.3 mile bike and a 3.1 mile run on paved roads and paths.
Monthly updates for Idaho
Get new running races (and updates) in your inbox every month.
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.
Rexburg RUSH Triathlon is a lakeside triathlon at Wakeside Lake in Rexburg, Idaho, produced by Tri Peaks Epic Events. It is scheduled for September 2026 and has an aggregate rating of 5 from two reviews.
October 2026
A point to point triathlon in eastern Valley County Idaho from Warm Lake to Yellow Pine via a 7300 foot summit. Multiple divisions include able bodied, adaptive, and relay formats with awards and an after party in Yellow Pine.
June 2027
A circuit-style triathlon on June 5, 2027 at Esther Simplot Park in Boise featuring Super Sprint, Sprint, Olympic distances plus relay and adaptive categories. The USAT sanctioned event supports adaptive sports in southern Idaho.
A triathlon at Deyo Reservoir near Weippe, Idaho on June 13, 2027 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 camping available.