1
The first Ironman race was held in Hawaii in 1978 with 15 entrants.
2
He managed to protect his advantage on his way to his first Ironman 70.3 victory.
3
Since 1978, when 50 competed in the first Ironman Triathlon, the sport's global popularity has soared.
4
Brown never looked back, he competed in his first Ironman in Auckland in 1997, falling in love with it straight away.