The IRONMAN 70.3 Washington Tri-Cities offers easy race logistics and a centralized venue. On race day, September 20, 2026, you will take on a 1.2-mile downriver swim in the iconic Columbia River, a 56-mile rolling bike through scenic wine country, and a flat, 13.1-run through parks and on paved trails, finishing at a festive finish line at Columbia Point Park. Go with the flow in Tri-Cities, Washington, the perfect backdrop for your end-of-summer race-cation.

IRONMAN 70.3 Washington Tri-Cities

The IRONMAN Group is the largest operator of mass participation in the world and provides more than a million participants annually the benefits of endurance sports through the company’s vast offerings. We inspire ordinary people to do extraordinary things. 

IRONMAN 70.3 Washington Tri-Cities

Adult Triathlon Race

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