[101] Tennys Sandgren 6-7,7-6,3-6 John Isner [20] 2020-01-14 23:00
Stadium: Stadium Round: 26 Ground: Hardcourt outdoor
Head to Head
| ATP Stockholm | 2018/10/19 19:10 | John Isner v Tennys Sandgren | 7-6,6-7,7-6 |
Home History
| ATP Auckland | 2020/01/13 01:05 | Tennys Sandgren v Michael Venus | 6-4,6-3 |
| ATP Doha | 2020/01/06 12:30 | Corentin Moutet v Tennys Sandgren | 7-6,6-4 |
| Challenger Houston | 2019/11/15 19:05 | Tennys Sandgren v Michael Redlicki | 7-6,4-6,4-6 |
| Challenger Houston | 2019/11/13 18:30 | Tennys Sandgren v Edan Leshem | 6-3,7-5 |
| ATP Zhuhai | 2019/09/24 11:30 | Tennys Sandgren v Andy Murray | 3-6,7-6,1-6 |
| US Open | 2019/08/31 22:25 | Diego Schwartzman v Tennys Sandgren | 6-4,6-1,6-3 |
| US Open | 2019/08/29 22:25 | Tennys Sandgren v Vasek Pospisil | 6-3,6-7,6-3,6-4 |
| US Open | 2019/08/27 18:50 | Jo-Wilfried Tsonga v Tennys Sandgren | 6-1,7-6,4-6,6-7,5-7 |
Away History
| ATP Cup | 2020/01/07 11:35 | Fabio Fognini v John Isner | 6-4,7-6 |
| ATP Cup | 2020/01/05 11:45 | Daniil Medvedev v John Isner | 6-3,6-1 |
| ATP Cup | 2020/01/03 03:25 | John Isner v Casper Ruud | 7-6,6-7,5-7 |
| Diriyah Tennis Cup Consolation Draw | 2019/12/14 13:00 | Jan-Lennard Struff v John Isner | 6-4,5-7,11-13 |
| Diriyah Tennis Cup Consolation Draw | 2019/12/13 10:00 | John Isner v Stan Wawrinka | 7-6,7-5 |
| Diriyah Tennis Cup | 2019/12/12 13:00 | Fabio Fognini v John Isner | 7-6,6-4 |
| ATP Paris | 2019/10/30 12:15 | Cristian Garin v John Isner | 7-6,7-6 |
| ATP Shanghai | 2019/10/10 07:00 | Novak Djokovic v John Isner | 7-5,6-3 |