MIAMI: Olympic superstar Michael Phelps kicked off the Orlando Pro Swim meet Friday with a victory in the 100m butterfly in 52.28sec. Phelps, hoping to add to his stunning tally of 18 Olympic gold medals at the Rio Games in August, swam the first 50m in 24.62sec and held off fellow American Tom Shields for the victory. Shields clocked 52.35, with Brazilian Henrique Martins third in 52.59. Germany’s Aliena Schmidtke won the women’s 100m fly in 59.94. Yuliya Efimova of Russia produced a season’s best of 1:05.70 in winning the women’s 100m breaststroke.