No. 5 seed Alexander Zverev drew Kevin Anderson, a former No. 5, in the first round.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Indian Wells
|
1/16 | Yanina Wickmayer |
1-6
3-6 |
| 2015 |
US Open WTA
|
1/64 | Yanina Wickmayer |
3-6
1-6 |
| 2012 |
Qatar Total Open
|
1/16 | Yanina Wickmayer |
7-6
6-4 |
| 2010 |
Porsche Tennis Grand Prix
Germany, Stuttgart |
Championship | Yanina Wickmayer |
6-3
6-3 |
| 2009 |
Western & Southern Financial Group Women
|
Championship | Yanina Wickmayer |
6-3
6-4 |
| 2009 |
Unicef Open
|
Championship | Yanina Wickmayer |
7-6
2-6 6-3 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Ladies Championship Gstaad
|
1/16 | Samantha Stosur |
3-6
2-6 |
| 2018 |
Mallorca Open
|
1/16 | Carina Witthoeft |
6-1
6-7 6-3 |
| 2018 |
Roland Garros WTA
|
1/64 | Viktoria Kuzmova |
6-7
6-7 |
| 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 |
