Top 10 All-Time Fastest Serves in Tennis RANKED
Marius Copil -Romania
242.0 km/h (150.4 mph), 2015 Australian Open

Copil is the most recent entrant onto the list with an effort that was measured at 242.0 km/h. It was served in the hot conditions of the Australian Open and took the accolade for the fastest serve ever hit at a Grand Slam. Currently it is the Romanian’s main claim to fame, as a career high of 124 shows he hasn’t cracked the top of the game.
He went on to lost the match to Stan Wawrinka, although it is a record that will take some beating at a major. At 6 foot 4, he is very much of the mould of a big server, whilst at 24 years old you would think there might still be a chance if seeing Copil firing some bombs on the big stage in years to come.
The Romanian goes a long way to disproving the theory that a good serve alone can guarantee a player success. This is often an accusation levied at some of the dominant servers on tour, but there is certainly more than a big serve to succeed on the tour.