Twenty-one of 25 former champions were, had been, or would be ranked in the Top 20.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Internazionali BNL d'Italia
|
1/32 | Aleksandra Krunic |
2-6
6-0 6-3 |
| 2018 |
Swiss Women's Championship, Qualification
|
1/12 (Special Qual) | Kathinka Von Deichmann |
6-1
6-3 |
| 2018 |
Miami Open, Qualification
|
1/12 (Special Qual) | Viktorija Golubic |
4-6
3-6 |
| 2018 |
Miami Open, Qualification
|
1/24 (Special Qual) | Roberta Vinci |
7-5
1-6 2-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2017 |
Wimbledon, Qualification
|
1/32 | Illya Marchenko |
3-6
7-6 6-4 |
| 2017 |
Wimbledon, Qualification
|
1/64 | Benjamin Becker |
6-3
3-6 4-6 |
| 2017 |
Gerry Weber Open, Qualification
|
1/8 | Mikhail Youzhny |
3-6
4-6 |
| 2017 |
Ricoh Open, Qualification
|
1/8 | Stefanos Tsitsipas |
6-7
6-3 7-5 |
