Forget Federer, Tiger, Schumacher, Pele, Armstrong, Jordan. Check out this one. Heather McKay completely dominated the sport of women's squash in the 1960s and 70s, winning 16 consecutive British Open titles between 1962 and 1977. She lost only two matches in her entire career (in 1960 and 1962), and was unbeaten in competitive squash matches from 1962 through to 1981 when she retired from active open squash. http://en.wikipedia.org/wiki/Heather_McKay Any contenders?