Isner lost his fourth-round match to Roberto Bautista Agut in Miami on Tuesday.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Fed Cup Group 1 - Europe/Africa, Event B Playoff
|
Championship | Magda Linette |
7-5
6-4 |
| 2020 |
Fed Cup Group 1 - Europe/Africa, Event B Pool А
|
Championship | Johanna Larsson |
1-6
0-6 |
| 2020 |
Australian Open WTA
|
1/64 | Paula Badosa Gibert |
6-1
6-0 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Tallahassee
|
1/16 | Jason Jung |
6-2
3-6 4-6 |
| 2021 |
Orlando
|
Quarter Finals | Christian Harrison |
6-7
3-6 |
| 2021 |
Orlando
|
1/8 | Jack Sock |
3-6
4-6 |
