Longest recorded tennis match lasted over 11 hours - Apparently.
In 2010, John Isner and Nicolas Mahut played a five-set match at Wimbledon that lasted an astonishing 11 hours and 5 minutes, with Isner ultimately winning 6-4, 3-6, 6-7, 7-6, 70-68. The match saw Isner serve 113 aces, while Mahut hit 103. The marathon match was suspended overnight on June 22 due to darkness, and resumed the next morning, with Isner eventually taking the fifth set in a tiebreaker. This record-breaking match is still widely regarded as one of the most epic in tennis history.