In pictures: Ironman World Championship triathlon 2016
Kailua-Kona in Hawaii hosted the 38th edition of the Ironman triathlon where 2,300 professional and amateur athletes gathered to undertake the 140.6-mile (approximately 226.3 kilometres) journey which includes cycling, swimming and running. The participants take part in a 112-mile (180.2 km) long cycling leg, a 26.2-mile (42.2 km) marathon and a 2.4-mile (3.9 km) swim.