What is the fastest tennis serve ever recorded?
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.
Samuel Groth of Australia holds the fastest tennis serve in tennis history at a speed of 163.7 mph in 2012 at the Busan open
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