Boise
Triathlon Calendar near Boise 2026-2027
Monthly updates for Boise
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Explore the top triathlons near Boise for 2026-2027! We've gathered 2 exciting races in the area. Check out our detailed list below to find your next local race.
June 2026
Take on a flat, closed course along the Boise River at Esther Simplot Park in the USAT sanctioned Treasure Valley Triathlon, serving as the Idaho State Championship. Super Sprint, Sprint, Olympic, relays, adaptive categories and a youth Splash and Da..
July 2026
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..