[84] Thiago Monteiro 4-6,6-7 John Isner [25] 2021-01-10 01:35
Stadium: Stadium Round: 26 Ground: Hardcourt outdoor
Head to Head
| Australian Open | 2020/01/21 10:00 | John Isner v Thiago Monteiro | 6-7,7-6,7-6,7-6 |
Home History
| ATP Delray Beach | 2021/01/07 16:00 | Thomaz Bellucci v Thiago Monteiro | 3-6,5-7 |
| Challenger Sao Paulo | 2020/11/25 15:05 | Thiago Monteiro v Maxime Janvier | 6-7,7-6,4-6 |
| Challenger Sao Paulo | 2020/11/24 15:35 | Thiago Monteiro v Gastao Elias | 6-3,6-2 |
| Challenger Orlando | 2020/11/19 15:00 | Thiago Monteiro v Brandon Nakashima | 4-6,3-6 |
| Challenger Orlando | 2020/11/17 18:30 | Thiago Monteiro v Stefan Kozlov | 6-1,6-3 |
| Challenger Cary | 2020/11/12 18:30 | Thiago Monteiro v Mikael Torpegaard | 6-4,3-6,4-6 |
| French Open | 2020/10/03 11:00 | Marton Fucsovics v Thiago Monteiro | 7-5,6-1,6-3 |
| French Open | 2020/10/01 09:00 | Marcos Giron v Thiago Monteiro | 6-7,4-6,1-6 |
Away History
| French Open | 2020/09/30 09:30 | Sebastian Korda v John Isner | 6-4,6-4,2-6,6-4 |
| French Open | 2020/09/27 11:30 | Elliot Benchetrit v John Isner | 4-6,1-6,3-6 |
| US Open | 2020/08/31 22:30 | Steve Johnson v John Isner | 6-7,6-3,6-7,6-3,7-6 |
| ATP New York | 2020/08/25 21:30 | John Isner v Stefanos Tsitsipas | 6-7,6-7 |
| ATP New York | 2020/08/24 17:05 | John Isner v John Millman | 4-6,7-6,7-6 |
| ATP New York | 2020/08/23 19:20 | John Isner v Hubert Hurkacz | 7-5,6-4 |
| All American Team Cup | 2020/07/05 18:20 | John Isner v Christopher Eubanks | 5-7,6-4,6-10 |
| All American Team Cup | 2020/07/04 22:00 | John Isner v Kevin King | 6-1,6-3 |