[9] John Isner 6-4,6-4 Sam Querrey [57] 2019-02-27 22:00
Stadium: Grandstand Round: 26 Ground: Hardcourt outdoor
Head to Head
| ATP Cincinnati | 2018/08/13 20:15 | John Isner v Sam Querrey | 4-6,7-6,6-7 |
| ATP Cincinnati | 2015/08/18 16:25 | John Isner v Sam Querrey | 3-6,6-7 |
| ATP Memphis | 2015/02/14 03:35 | John Isner v Sam Querrey | 6-7,6-7 |
Home History
| ATP Acapulco | 2019/02/26 22:00 | John Isner v Adrian Mannarino | 6-3,4-6,6-3 |
| ATP Delray Beach | 2019/02/23 20:00 | Daniel Evans v John Isner | 3-6,6-2,6-3 |
| ATP Delray Beach | 2019/02/22 19:30 | Adrian Mannarino v John Isner | 6-7,4-6 |
| ATP Delray Beach | 2019/02/20 23:00 | Lukas Lacko v John Isner | 4-6,3-6 |
| ATP Delray Beach | 2019/02/19 20:05 | Peter Polansky v John Isner | 3-6,6-7 |
| ATP New York | 2019/02/17 00:00 | John Isner v Reilly Opelka | 7-6,6-7,6-7 |
| ATP New York | 2019/02/16 00:00 | John Isner v Jordan Thompson | 6-4,6-1 |
| ATP New York | 2019/02/14 00:30 | John Isner v Bernard Tomic | 7-6,6-4 |
Away History
| ATP Acapulco | 2019/02/27 00:30 | Sam Querrey v Guillermo Garcia-Lopez | 6-3,6-2 |
| ATP New York | 2019/02/16 21:00 | Brayden Schnur v Sam Querrey | 7-6,4-6,6-3 |
| ATP New York | 2019/02/15 20:00 | Sam Querrey v Jason Jung | 6-3,3-6,6-3 |
| ATP New York | 2019/02/14 20:30 | Sam Querrey v Radu Albot | 6-3,6-4 |
| ATP New York | 2019/02/13 02:10 | Sam Querrey v Lloyd Harris | 7-6,6-2 |
| Australian Open | 2019/01/15 00:00 | Sam Querrey v Pierre-Hugues Herbert | 7-5,6-7,3-6,1-6 |
| ATP Sydney | 2019/01/09 08:30 | Sam Querrey v Gilles Simon | 6-7,7-6,4-6 |
| ATP Paris | 2018/10/27 12:20 | Nicolas Mahut v Sam Querrey | 3-6,7-6,7-6 |