| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
Istanbul
|
1/16 | Denis Istomin |
6-7
6-2 2-1 |
| 2019 |
US Open, Qualification ATP
|
1/64 | Mischa Zverev |
7-6
7-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Davis Cup Qualifying Round
|
Championship | Tommy Paul |
6-3
6-0 |
| 2020 |
Davis Cup Qualifying Round
|
Championship | Reilly Opelka |
6-2
7-5 |
| 2020 |
Columbus
|
1/8 | Denis Istomin |
3-6
1-6 |
| 2020 |
Delray Beach Open
|
1/16 | Milos Raonic |
2-6
2-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
International Tennis Series
|
Championship | James Cerretani |
2-4
0-0 |
| 2020 |
International Tennis Series
|
Championship | Paolo Lorenzi |
4-2
4-2 |
| 2020 |
Indian Wells
|
1/16 | Gregoire Barrere |
3-6
6-3 5-7 |
| 2020 |
Mexican Open
|
1/16 | John Isner |
6-3
7-6 |
