Twenty-one of 25 former champions were, had been, or would be ranked in the Top 20.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2006 |
Generali Ladies Linz
Austria, Linz |
Championship | Vera Zvonareva |
6-4
6-6 |
| 2006 |
Zurich Open
Switzerland, Zurich |
Championship | Katarina Srebotnik |
6-3
7-5 |
| 2006 |
Porsche Tennis Grand Prix
Germany, Stuttgart |
Championship | Jelena Jankovic |
7-6
6-3 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2019 |
Volvo Car Open, Qualification
|
1/16 | Nicole Melichar |
6-7
7-6 6-3 |
| 2019 |
Fed Cup World Group 2
|
Championship | Kurumi Nara |
7-6
6-4 |
| 2019 |
Australian Open, Qualification WTA
|
1/64 | Olga Govortsova |
6-2
2-6 1-6 |
