Isner lost his fourth-round match to Roberto Bautista Agut in Miami on Tuesday.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2011 |
Kremlin Cup
Russia, Moscow |
Championship | Bojana Jovanovski |
6-3
6-0 |
| 2011 |
China Open
China, Beijing |
Championship | Sofia Arvidsson |
6-2
5-7 7-5 |
| 2011 |
Landsky Lighting Guangzhou International Women's Open
China, Guangzhou |
Championship | Maria Kirilenko |
6-4
6-2 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Biella 4
|
1/16 | Andreas Seppi |
6-4
3-6 3-6 |
