| ATP Montreal | 08/06 16:00 | 24 | [46] Jordan Thompson v John Isner [15] | 6-3,3-6,6-7 | |
| ATP Washington | 08/02 00:00 | 26 | [30] Benoit Paire v John Isner [15] | 7-6,6-3 | |
| ATP Washington | 07/31 18:00 | 25 | [44] Hubert Hurkacz v John Isner [15] | 4-6,4-6 | |
| ATP Atlanta | 07/24 23:00 | 26 | [14] John Isner v Reilly Opelka [57] | 6-7,7-6,6-7 | |
| ATP Newport | 07/21 18:00 | 29 | [15] John Isner v Alexander Bublik [83] | 7-6,6-3 | |
| ATP Newport | 07/20 19:25 | 28 | [15] John Isner v Ugo Humbert [48] | 6-7,7-6,6-3 | |
| ATP Newport | 07/19 18:35 | 27 | [15] John Isner v Matthew Ebden [110] | 4-6,6-3,6-4 | |
| ATP Newport | 07/17 18:40 | 26 | [15] John Isner v Kamil Majchrzak [102] | 6-4,6-7,6-3 | |
| Wimbledon | 07/04 12:00 | 24 | [58] Mikhail Kukushkin v John Isner [12] | 6-4,6-7,4-6,6-1,6-4 | |
| Wimbledon | 07/02 16:55 | 23 | [62] Casper Ruud v John Isner [12] | 3-6,4-6,6-7 | |
| ATP Miami | 03/31 17:00 | 29 | [9] John Isner v Roger Federer [5] | 1-6,4-6 | |
| ATP Miami | 03/29 17:00 | 28 | [9] John Isner v Felix Auger Aliassime [57] | 7-6,7-6 | |
| ATP Miami | 03/27 20:20 | 27 | [25] Roberto Bautista-Agut v John Isner [9] | 6-7,6-7 | |
| ATP Miami | 03/26 16:00 | 26 | [22] Kyle Edmund v John Isner [9] | 6-7,6-7 | |
| ATP Miami | 03/24 16:00 | 25 | [86] Albert Ramos-Vinolas v John Isner [9] | 5-7,6-7 | |
| ATP Miami | 03/22 18:25 | 24 | [106] Lorenzo Sonego v John Isner [9] | 6-7,6-7 | |
| ATP Indian Wells | 03/13 21:10 | 26 | [9] John Isner v Karen Khachanov [13] | 4-6,6-7 | |
| ATP Indian Wells | 03/12 21:20 | 25 | [9] John Isner v Guido Pella [34] | 6-3,6-4 | |
| ATP Indian Wells | 03/10 23:15 | 24 | [9] John Isner v Alexei Popyrin [131] | 6-0,6-2 | |
| ATP Acapulco | 03/02 04:30 | 28 | [72] Nick Kyrgios v John Isner [9] | 7-5,5-7,7-6 | |
| ATP Acapulco | 03/01 05:10 | 27 | [9] John Isner v John Millman [44] | 7-6,6-7,7-6 | |
| ATP Acapulco | 02/27 22:00 | 26 | [9] John Isner v Sam Querrey [57] | 6-4,6-4 | |
| ATP Acapulco | 02/26 22:00 | 25 | [9] John Isner v Adrian Mannarino [51] | 6-3,4-6,6-3 | |
| ATP Delray Beach | 02/23 20:00 | 28 | [148] Daniel Evans v John Isner [9] | 3-6,6-2,6-3 | |
| ATP Delray Beach | 02/22 19:30 | 27 | [51] Adrian Mannarino v John Isner [9] | 6-7,4-6 | |
| ATP Delray Beach | 02/20 23:00 | 26 | [133] Lukas Lacko v John Isner [9] | 4-6,3-6 | |
| ATP Delray Beach | 02/19 20:05 | 25 | [122] Peter Polansky v John Isner [9] | 3-6,6-7 | |
| ATP New York | 02/17 00:00 | 28 | [9] John Isner v Reilly Opelka [89] | 7-6,6-7,6-7 | |
| ATP New York | 02/16 00:00 | 27 | [9] John Isner v Jordan Thompson [60] | 6-4,6-1 | |
| ATP New York | 02/14 00:30 | 26 | [9] John Isner v Bernard Tomic [87] | 7-6,6-4 |
Wikipedia - John Isner
John Robert Isner (born April 26, 1985) is an American former professional tennis player. He was ranked as high as world No. 8 in singles and No. 14 in doubles by the Association of Tennis Professionals (ATP).Considered one of the best servers ever to play on the ATP Tour, Isner achieved his career-high singles ranking in July 2018 by virtue of his first Masters 1000 crown at the 2018 Miami Open and a semifinal appearance at the 2018 Wimbledon Championships. He also twice reached the quarterfinals at the US Open in 2011 and 2018, the latter of which helped qualify him for an ATP Finals appearance later that year. At the 2010 Wimbledon Championships, he played the longest professional tennis match in history, requiring five sets and 183 games to defeat Nicolas Mahut in a match which lasted 11 hours and 5 minutes, and was played over the course of three days. Isner holds the record for hitting the ATP's fastest "official" serve ever and third-fastest on record in tennis at 157.2 mph or 253 km/h during his first-round 2016 Davis Cup match. He has the most aces in the history of the ATP Tour, having served 14,470, as of August 31, 2023. Isner retired from professional tennis following the 2023 US Open.