Isner lost his fourth-round match to Roberto Bautista Agut in Miami on Tuesday.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2017 |
Barcelona Open BancSabadell
|
1/16 | Feliciano Lopez |
2-6
2-6 |
| 2017 |
Barcelona Open BancSabadell
|
1/32 | Albert Montanes |
4-6
4-6 |
| 2017 |
Sophia Antipolis
|
1/16 | Stefano Napolitano |
2-6
1-6 |
| 2017 |
Open 13 Provence, Qualification
|
Quarter Finals | Andrey Rublev |
6-3
6-2 |
| 2017 |
Open 13 Provence, Qualification
|
1/8 | Albert Montanes |
0-6
6-4 6-4 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Biella 4
|
1/16 | Andreas Seppi |
6-4
3-6 3-6 |
