Ironman World Championship Kona
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IRONMAN World Championship : Kailua-Kona, Hawaii
The IRONMAN World Championship is a championship-distance triathlon held in Kailua-Kona, Hawaii on October 9, 2027. The event is organized by IRONMAN and entry is by qualification only; athletes earn a slot by finishing among the fastest in their age group at qualifying IRONMAN races and must accept the slot in person at the post-race awards and rolldown ceremony.
The full race distance is 140.6 miles / 226 km and comprises:
- 2.4-mile ocean swim in Kailua Bay
- 112-mile bike on the Queen Kaʻahumanu Highway
- 26.2-mile marathon run finishing on Ali’i Drive
Course notes describe a swim in open ocean waters, a bike route that traverses volcanic landscapes along the Queen Kaʻahumanu Highway, and a run into the finish area on Ali’i Drive. Environmental conditions commonly reported for the event include heat, humidity, and crosswinds; published typical temperatures are a high of 87 °F / 31 °C, a low of 76 °F / 24 °C, and an average water temperature of 79 °F / 26 °C.
Event information also emphasizes local guidelines for athlete conduct, asking participants to Live Aloha, follow traffic and cycling laws while training on the island, avoid riding on the south side of Kona town for safety, and be courteous on roads during practice sessions. Visit the organization's website for the most recent information.
