Six days after stating he would self-isolate, the German was seen at a restaurant.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Fed Cup Qualifiers
|
Championship | Kirsten Flipkens |
6-3
6-4 |
| 2020 |
Fed Cup Qualifiers
|
Championship | Elise Mertens |
1-6
6-2 6-1 |
| 2020 |
Australian Open WTA
|
1/16 | Kiki Bertens |
2-6
6-7 |
| 2020 |
Australian Open WTA
|
1/32 | Zarina Diyas |
4-6
6-3 6-4 |
| 2020 |
Australian Open WTA
|
1/64 | Zarina Diyas |
3-6
6-4 3-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Adria Tour, Group A
|
Championship | Novak Djokovic |
4-0
1-4 4-2 |
| 2020 |
Adria Tour, Group A
|
Championship | Alexander Zverev |
1-4
1-4 |
| 2020 |
Adria Tour, Group A
|
Championship | Alexander Zverev |
0-4
4-3 4-3 |
| 2020 |
Adria Tour, Group B
|
Championship | Andrey Rublev |
2-4
1-4 |
| 2020 |
Adria Tour, Group B
|
Championship | Alexander Zverev |
4-3
0-4 4-3 |
| 2020 |
Adria Tour, Group B
|
Championship | Danilo Petrovic |
3-4
3-4 |
