Isner lost his fourth-round match to Roberto Bautista Agut in Miami on Tuesday.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Volvo Car Open
|
1/32 | Yulia Putintseva |
6-7
4-6 |
| 2021 |
Volvo Car Open, Qualification
|
1/8 | Grace Min |
2-6
2-6 |
| 2021 |
Miami Open, Qualification
|
1/12 (Special Qual) | Tereza Martincova |
3-6
5-7 |
| 2021 |
Miami Open, Qualification
|
1/24 (Special Qual) | Harriet Dart |
6-7
6-4 2-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Biella 4
|
1/16 | Andreas Seppi |
6-4
3-6 3-6 |
