John Isner

John Isner is an American former professional tennis player, born on April 26, 1985, who was ranked as high as world number 8 in singles and number 14 in doubles by the ATP. He is considered one of the best servers ever to play on the ATP Tour: he holds the record for the fastest official serve in ATP history at 157.3 miles per hour, hit in a first-round 2016 Davis Cup match, and had served the most aces in ATP Tour history, 14,470 as of August 31, 2023. At the 2010 Wimbledon Championships he played the longest professional tennis match in history, beating Nicolas Mahut in five sets and 183 games over 11 hours and 5 minutes across three days. He reached his career high singles ranking in July 2018 after his first Masters 1000 title at the 2018 Miami Open and a Wimbledon semifinal, and he retired from professional tennis following the 2023 US Open. In June 2024 he made his professional pickleball debut in men's doubles at the Texas Open.