No. 5 seed Alexander Zverev drew Kevin Anderson, a former No. 5, in the first round.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Open Sud de France, Qualification
|
Quarter Finals | Peter Gojowczyk |
2-6
1-6 |
| 2021 |
Open Sud de France, Qualification
|
1/8 | Lukas Lacko |
6-4
4-6 4-6 |
| 2021 |
Biella 2
|
1/16 | Lukas Lacko |
3-6
2-6 |
| 2021 |
Biella
|
1/16 | Federico Gaio |
3-6
4-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Roland Garros, Qualification WTA
|
1/48 (Special Qual) | Lesley Kerkhove |
4-6
5-7 |
| 2020 |
US Open WTA
|
1/64 | Sofia Kenin |
2-6
2-6 |
