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 |
Australian Open
|
1/32 | David Goffin |
4-6
0-6 3-6 |
| 2017 |
Australian Open
|
1/64 | Radek Stepanek |
2-6
6-7 3-6 |
| 2017 |
Australian Open, Qualification
|
1/16 | Radek Stepanek |
6-2
6-4 |
| 2017 |
Australian Open, Qualification
|
1/32 | Radek Stepanek |
6-3
6-7 8-6 |
| 2017 |
Australian Open, Qualification
|
1/64 | Radek Stepanek |
6-3
6-7 6-2 |
