Six days after stating he would self-isolate, the German was seen at a restaurant.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Mexican Open
|
1/16 | Ugo Humbert |
3-6
- |
| 2020 |
Australian Open ATP
|
1/8 | Rafael Nadal |
6-3
3-6 7-6 7-6 |
| 2020 |
Australian Open ATP
|
1/16 | Nick Kyrgios |
6-2
7-6 6-7 6-7 7-6 |
| 2020 |
Australian Open ATP
|
1/32 | Nick Kyrgios |
6-2
6-4 4-6 7-5 |
| 2020 |
Australian Open ATP
|
1/64 | Nick Kyrgios |
6-2
7-6 7-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
Jiangxi Open
|
1/16 | Kateryna Kozlova |
6-2
6-1 |
| 2019 |
Jiangxi Open, Qualification
|
1/12 (Special Qual) | Greta Arn |
2-6
2-6 |
| 2019 |
Monterrey Open
|
1/8 | Kristina Mladenovic |
6-0
6-2 |
| 2019 |
Monterrey Open
|
1/16 | Greta Arn |
7-5
3-6 7-5 |
