3-time Grand Slam champion Stan Wawrinka's highest-ever recorded speed was calculated at 27.66 km/hr.
Former World No. 3 David Ferrer clocked 27.82 km/hr during one of his matches making him the 6th fastest player ever.
2017 ATP Finals winner Grigor Dimitrov's fastest speed on the Tour came out to be 28.91 km/hr making the Bulgarian the 5th fastest player ever.
French veteran and former World No. 6 Gilles Simon breached the 30 km/hr mark with his fastest-ever sprint of 30.76 km/hr.
2-time Grand Slam champion Lleyton Hewitt ranks 3rd on the list. The Australian great's quickest ever speed was recorded at 31.24 km/hr.
3-time Grand Slam champion Andy Murray at the peak of his career clocked 34.87 km/hr which cemented his place as the second fastest tennis player.
21-time Grand Slam winner Novak Djokovic is the fastest tennis player ever. The former World No. 1's fastest ever speed recorded was at 36.02 km/hr and remains unmatched to date.