"I made this decision last night," said Isner after losing to Korda in Delray Beach.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2009 |
Hamburg German Open, Qualification
|
Championship | Potito Starace |
6-4
6-2 |
| 2009 |
SkiStar Swedish Open
|
Championship | Guillermo Canas |
3-6
6-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Delray Beach Open
|
Quarter Finals | Sebastian Korda |
6-3
4-6 6-3 |
| 2021 |
Delray Beach Open
|
1/8 | John Isner |
4-6
6-7 |
| 2020 |
Roland Garros ATP
|
1/32 | Sebastian Korda |
6-4
6-4 2-6 6-4 |
| 2020 |
US Open ATP
|
1/64 | Steve Johnson |
6-7
6-3 6-7 6-3 7-6 |
