Twenty-one of 25 former champions were, had been, or would be ranked in the Top 20.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Australian Open, Qualification WTA
|
1/16 | Greet Minnen |
6-2
3-6 6-4 |
| 2021 |
Australian Open, Qualification WTA
|
1/64 | Varvara Lepchenko |
3-6
6-2 6-0 |
| 2020 |
Roland Garros WTA
|
1/64 | Barbora Strycova |
7-5
6-2 |
| 2020 |
Roland Garros, Qualification WTA
|
1/12 (Special Qual) | Varvara Lepchenko |
6-3
6-4 |
| 2020 |
Roland Garros, Qualification WTA
|
1/24 (Special Qual) | Varvara Lepchenko |
2-6
5-7 |
| 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 |
