Ironman 70.3 Boise

JUL

24

2027

A triathlon in Boise, Idaho featuring a swim in the Boise River, a bike through foothills, and a run along the greenbelt, scheduled for July 25, 2026.

Sat 24 Jul 2027

Boise, Idaho

Website

Middle distance 1.9 90 21.1 km

Always double-check with the organizer's website! This page may contain affiliate links.

IRONMAN 70.3 Boise

IRONMAN 70.3 Boise is a triathlon staged in Boise, Idaho, United States, scheduled for July 25, 2026. The event combines open-water swimming, road cycling, and running on mapped courses in and around the city.

The course features a swim in the Boise River and the Lucky Peak Reservoir area, a bike route that passes through foothill terrain, and a run that follows the Boise greenbelt and cityscapes. Organizer materials highlight local spectator support and a mix of urban and outdoor scenery.

Event information lists environmental conditions associated with the race: a high air temperature of 95°F (35°C), a low air temperature of 67°F (19°C), and an average water temperature of 67°F (19°C). The event is presented as part of IRONMAN activity programming and is shown with a World Championship qualifier badge and an IRONMAN Pro Series association. Registration opening is noted as TBD. Visit the organization's website for the most recent information.

70 mi

Ironman 70.3