Twenty-one of 25 former champions were, had been, or would be ranked in the Top 20.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2015 |
Grand Prix SAR La Princesse Lalla Meryem
|
1/16 | Flavia Pennetta |
6-2
6-3 |
| 2011 |
Medibank International
Australia, Sydney |
Championship | Bojana Jovanovski |
6-4
6-1 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Tianjin Open, Qualification
|
1/12 (Special Qual) | Sabine Lisicki |
6-2
6-1 |
| 2018 |
Tashkent Open
|
1/16 | Vera Lapko |
1-6
3-6 |
| 2018 |
US Open, Qualification WTA
|
1/32 | Anastasia Potapova |
6-7
3-6 |
| 2018 |
US Open, Qualification WTA
|
1/64 | Bojana Jovanovski |
6-4
6-4 |
| 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 |
