[30] John Isner 7-6,6-4 Gael Monfils [22] 2021-08-14 01:35
Stadium: Stadium Round: 27 Ground: Hardcourt outdoor
Head to Head
| ATP Beijing | 2019/10/01 05:00 | Gael Monfils v John Isner | 4-6,7-6,3-6 |
| ATP Vienna | 2018/10/25 17:00 | Gael Monfils v John Isner | 6-4,6-4 |
| ATP Indian Wells | 2018/03/11 18:00 | John Isner v Gael Monfils | 7-6,6-7,5-7 |
| ATP Indian Wells | 2017/03/14 03:30 | Gael Monfils v John Isner | 6-2,6-4 |
Home History
| ATP Toronto | 2021/08/12 16:35 | Andrey Rublev v John Isner | 5-7,6-7 |
| ATP Toronto | 2021/08/11 15:00 | John Isner v Cristian Garin | 4-6,6-3,6-4 |
| ATP Toronto | 2021/08/10 17:25 | John Isner v Alejandro Davidovich Fokina | 6-4,6-1 |
| ATP Atlanta | 2021/08/01 21:00 | Brandon Nakashima v John Isner | 6-7,5-7 |
| ATP Atlanta | 2021/07/31 23:00 | Taylor Fritz v John Isner | 6-7,7-5,3-6 |
| ATP Atlanta | 2021/07/31 00:00 | John Isner v Christopher O'Connell | 7-6,6-7,6-4 |
| ATP Atlanta | 2021/07/29 23:00 | John Isner v Jack Sock | 7-6,6-4 |
| ATP Atlanta | 2021/07/27 19:00 | John Isner v Jeffrey John Wolf | 6-4,6-7,6-4 |
Away History
| ATP Toronto | 2021/08/12 21:35 | Gael Monfils v Frances Tiafoe | 6-1,7-6 |
| ATP Toronto | 2021/08/12 00:30 | Gael Monfils v John Millman | 3-6,6-3,6-4 |
| Olympics 2020 - Men | 2021/07/25 04:10 | Gael Monfils v Ilya Ivashka | 4-6,6-4,5-7 |
| Wimbledon | 2021/07/01 11:40 | Pedro Martinez v Gael Monfils | 6-3,6-4,4-6,7-6 |
| Wimbledon | 2021/06/30 12:00 | Christopher O'Connell v Gael Monfils | 6-4,2-6,6-7,6-4,4-6 |
| ATP Eastbourne | 2021/06/23 10:00 | Gael Monfils v Max Purcell | 4-6,7-5,4-6 |
| ATP Halle | 2021/06/15 09:00 | Gael Monfils v Lloyd Harris | 4-6,4-6 |
| French Open | 2021/06/03 10:30 | Mikael Ymer v Gael Monfils | 6-0,2-6,6-4,6-3 |