Williams became the first in history to own a career Golden Slam in singles and doubles.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Australian Open WTA
|
1/64 | Donna Vekic |
6-3
6-4 |
| 2020 |
Brisbane International
|
1/16 | Jennifer Brady |
6-3
1-6 6-7 |
| 2019 |
US Open WTA
|
1/64 | Serena Williams |
6-1
6-1 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Morelos
|
1/16 | Cristian Garin |
2-6
4-6 |
| 2018 |
Launceston
|
1/8 | Alexander Sarkissian |
5-7
3-6 |
| 2018 |
Launceston
|
1/16 | Marinko Matosevic |
4-6
6-4 6-7 |
| 2018 |
Australian Open, Qualification ATP
|
1/64 | Dennis Novikov |
3-6
6-7 |
