The oldest competitor at the 2012 Olympic Games has revealed the extraordinary sacrifices he has made in order to remain a medal contender well past retirement age. Hiroshi Hoketsu, who will represent Japan in the equestrian discipline of dressage at the age of 71, told Yahoo! Sports how chasing a slice of history and becoming the oldest Olympian in the last 92 years is the result of a fanatical commitment to the sport.