Twenty-one of 25 former champions were, had been, or would be ranked in the Top 20.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2015 |
China Open
|
1/16 | Flavia Pennetta |
6-3
0-6 4-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2015 |
BNP Paribas WTA Finals Singapore Red Group
|
Championship | Maria Sharapova |
7-5
6-1 |
| 2015 |
BNP Paribas WTA Finals Singapore Red Group
|
Championship | Flavia Pennetta |
6-7
4-6 |
| 2015 |
BNP Paribas WTA Finals Singapore Red Group
|
Championship | Simona Halep |
6-0
6-3 |
| 2015 |
Kremlin Cup By Bank Of Moscow
|
Quarter Finals | Lesia Tsurenko | |
| 2015 |
Kremlin Cup By Bank Of Moscow
|
1/8 | Flavia Pennetta |
6-2
6-4 |
| 2015 |
Tianjin Open
|
1/16 | Lyudmyla Kichenok |
3-6
5-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Fed Cup Qualifiers
|
Championship | Laura Siegemund |
3-6
3-6 |
| 2017 |
GP SAR La Princesse Lalla Meryem, Qualification
|
1/8 | Nadia Podoroska |
6-3
6-0 |
| 2017 |
GP SAR La Princesse Lalla Meryem, Qualification
|
1/16 | Teliana Pereira |
0-6
4-6 |
