FOR TOP MOMENTS IN THE HISTORY OF FOOTBALL SEE: https://www.youtube.com/watch?v=hj-PBd1xmpg&index=33&list=PLv1t2O725HoMhr16_V_C0DvrNBGeqjFD8
Busan, South Korea: Samuel Groth of Australia achieved a World Record of the fastest serve ever in tennis history with a service speed of 163.7 mph (263.4 kph) at the Busan Open 2012 Challenger Event. Although it is not yet officially recognized by the ATP due to variance in radar guns at challenger events, people still recognize him for such accomplishment.