Twenty-one of 25 former champions were, had been, or would be ranked in the Top 20.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
DraftKings All-American Team Cup
|
Championship | John Isner |
6-1
6-3 |
| 2020 |
DraftKings All-American Team Cup
|
Championship | John Isner |
6-3
6-4 |
| 2020 |
Mexican Open
|
Semi Finals | Taylor Fritz |
2-6
7-5 6-3 |
| 2020 |
Mexican Open
|
Quarter Finals | John Isner |
7-6
3-6 6-2 |
| 2020 |
Mexican Open
|
1/8 | John Isner |
6-3
7-6 |
| 2020 |
Mexican Open
|
1/16 | John Isner |
6-3
7-6 |
| 2020 |
New York Open
|
1/8 | Jordan Thompson |
6-7
7-6 3-6 |
| 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 |
