During which year was Karlović's fastest serve record officially surpassed?
2013
2014
2015
2016
Answer
Karlović's record for the fastest serve in tennis was officially surpassed in 2016. The milestone was reached by Sam Querrey, an American tennis player, during a Davis Cup match against Croatia. Querrey's serve was recorded at an astonishing speed of 231 kilometers per hour or 143.5 miles per hour, surpassing Karlović's previous record of 229 kilometers per hour or 136.7 miles per hour set in 2007.
The Ace of Hearts: A Quiz on Ivo Karlović
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