Villaroel C, Mora R, González-Parra GC. Elite triathlete performance related to age. J. Hum. Sport Exerc. Vol. 6, No. 2, pp. 363-373, 2011. Triathlon is considered an endurance sport composed by the individual disciplines of swimming, cycling and running. The level of elite triathlon improves every year and the studies of several factors that help to improve the performance of triathletes who compete at Olympic, World Series, European, Pan-American, Commonwealth and others important events are increasing. It has been suggested that triathlon performance decline with age. However, it has also been suggested that experience is an important variable related to performance in sports and especially in crucial events. It is the aim of this resear...