Boise
Triathlon Calendar near Boise 2025-2026
Monthly updates for Boise
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Explore the top triathlons near Boise for 2025-2026! We've gathered 2 exciting races in the area. Check out our detailed list below to find your next local race.
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.
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..