Alexander Zverev regrouped with Jan-Lennard Struff to top Novak Djokovic and Nikola Cacic.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2014 |
Bergamo
|
1/16 | Jan-Lennard Struff |
3-6
3-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Rotterdam Open
|
1/16 | David Goffin |
6-4
6-0 |
| 2021 |
Open Sud de France
|
1/16 | Peter Gojowczyk |
6-3
6-4 |
| 2021 |
Australian Open ATP
|
1/64 | Christopher O'connell |
7-6
7-6 6-1 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Bangkok
|
1/16 | Flavio Cipolla |
3-6
6-3 6-3 |
