Who surpassed Karlović's serve speed record unofficially?
Rafael Nadal
Andy Murray
John Isner
Samuel Groth
Answer
Samuel Groth, an Australian professional tennis player, unofficially surpassed Ivo Karlović's record for the fastest serve in tennis history. During a Davis Cup match in 2015, Groth unleashed a blistering serve clocked at an astonishing 263 kilometers per hour (163.4 miles per hour). While the serve didn't meet the stringent requirements for official recognition, it remains an impressive feat that showcased Groth's exceptional power and skill on the court.
The Ace of Hearts: A Quiz on Ivo Karlović
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