An accomplished lawyer in California, now retired Clifford Bernard Malone, Jr., had maintained a private practice in Walnut Creek since 1975. As an attorney, he had focused on a wide range of legal matters, from personal injury cases to federal pension law. Beyond his extensive legal work, Clifford Bernard Malone, Jr., enjoys playing tennis in his free time.
According to the Guinness Book of World Records, the fastest tennis serve of all time belongs to Australian Samuel Groth. Known for his serve, Groth delivered a massive serve at a challenger event in 2012, clocking in at just under 164 miles per hour. That said, Groth’s record serve is not recognized by the Association of Tennis Professionals (ATP). While Groth’s serve took place under ATP-approved conditions and all technology appeared to be operating within normal ranges, challenger events lack the resources of major tournaments and are viewed as less reliable in terms of service data.
On the ATP tour, the fastest serve belongs to American John Isner. Also regarded for his big serve, Isner made a serve at 157.2 miles per hour during a 2016 Davis Cup match against Australia’s Bernard Tomic. Interestingly, Isner also defeated Groth during the tie as America upset the Australian team.
Meanwhile, the record for fastest serve on the Women's Tennis Association (WTA) tour belongs to Sabien Lisicki. The German player delivered a serve at 131 miles per hour at the 2014 Stanford Classic in a match against Ana Ivanovic.