who has the fastest serve in the atp tennis history at 163.4 mph
Fastest recorded tennis serves Although the Association of Tennis Professionals does not formally recognise service speed records made in Challenger events due to the variance in radar guns, the serve of 263.4 km/h (163.7 mph) recorded by Australian Sam Groth at an ATP Challenger event in Busan, South Korea in May 2012 was measured using approved equipment, and other data gathered appeared within a normal range. However, John Isner holds the official record for the fastest serve at 253 km/h (157.2 mph).[2]
Novak Djokovic Djokovic has won 12 Grand Slam singles titles, the fourth most (equal with Roy Emerson) in history, and held the No. 1 spot in the ATP rankings for a total of 223 weeks. In majors, Djokovic has won six Australian Open titles, three Wimbledon titles, two US Open titles and one French Open title. In 2016, he became the eighth player in history to achieve the Career Grand Slam; by winning the 2016 French Open, Djokovic became the third man to hold all four major titles at once, the first since Rod Laver in 1969,[16] and the first ever to do so on three different surfaces.[17] Djokovic holds the highest match winning rate (82.8%) in the Open Era, as of July 2017.[18][19]