The oldest person to complete the Hawaiian Ironman is Lew Hollander (USA), who was aged 82 years 129 days when he ran the 2012 Ironman World Championship in Kailua-Kona, Hawaii, USA, on 13 October 2012.

Lew completed the course, which consists of a 2.4 mile swim, 112 mile bike and a 26.2 mile run, in 16 hr 45 min 52 sec.