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 8 exciting races across the region. Find your next race in Idaho below and join the running community at these great events!
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.
IRONMAN 70.3 Coeur d'Alene on June 27, 2027 features a 1.2 mile swim in Lake Coeur d'Alene, a 56 mile bike through rolling hills and a 13.1 mile lakeside run.
July 2027
IRONMAN 70.3 Boise on July 24, 2027 features a river swim, a foothill bike and a run along the greenbelt through Boise's urban and natural areas.
Monthly updates for Idaho
Get new running races (and updates) in your inbox every month.
Multiple races around Lake Coeur d'Alene on July 31, 2027, with a deep water swim start, lake road bike routes and a riverside 10k finish in City Park.
August 2027
Sprint off road triathlon at Hill's Resort featuring a 395 m swim, 11 mile mountain bike on forest roads, and a 5 km run along Priest Lake.
September 2027
A paddle and run at Higgens Point in Coeur D Alene offering individual and team short and long courses with paddle-run stages and proceeds benefiting Companions Animal Shelter.