Ironman 70.3 Boise
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IRONMAN 70.3 Boise - July 25, 2026
IRONMAN 70.3 Boise is a half-distance triathlon held in Boise, Idaho, United States. The event is scheduled for July 25, 2026 and is presented as part of the IRONMAN race calendar. It is identified as an inaugural year event in the capital of Idaho and carries a World Championship qualification designation.
The race format includes three segments: a swim in local reservoir waters referenced on course materials (Lucky Peak Reservoir is noted), a hilly bike course that moves through nearby foothills, and a predominantly flat run that follows the Boise greenbelt. Course information classifies the swim as reservoir, the bike as hilly, and the run as flat. Reported environmental conditions for the event include a high air temperature near 95 °F / 35 °C, a low air temperature near 67 °F / 19 °C, and an average water temperature of about 67 °F / 19 °C.
The event listing references community support from Boise residents and highlights a mix of urban and outdoor scenery. The race appears within IRONMAN event categories and is linked to the broader IRONMAN Pro Series and World Championship qualification structure. Registration is shown as open for this edition. Visit the organization's website for the most recent information.
