Ironman World Championship Kona
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IRONMAN World Championship Kona 2026
The IRONMAN World Championship takes place in Kailua-Kona, Hawaii, on October 10, 2026. The race is a full-distance triathlon covering 140.6 miles / 226 km and is open only to athletes who qualify. The 2026 event returns to a single race day with men and women racing together.
The race is split into three standard IRONMAN segments:
- 2.4 mile ocean swim in Kailua Bay
- 112 mile bike ride along Queen Kaahumanu Highway across volcanic landscapes
- 26.2 mile marathon that finishes along Ali’i Drive under the Hawaiian sun
The course is described as subject to heat, humidity, and crosswinds. Reported forecast temperatures around the event include a high near 86 °F / 30 °C and a low near 75 °F / 24 °C. The event hosts both professional and amateur age-group triathletes and highlights operational changes for 2026 as the championship returns to Kona. Visit the organization's website for the most recent information.