Williams became the first in history to own a career Golden Slam in singles and doubles.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2016 |
Dubai Duty Free Tennis Championships
|
1/8 | Andrea Petkovic |
6-3
6-2 |
| 2013 |
Nuernberger Versicherungscup
Germany, Nuremberg |
Semi Finals | Andrea Petkovic |
4-6
3-6 |
| 2012 |
BGL BNP Paribas Luxembourg Open
|
1/8 | Andrea Petkovic |
5-7
0-6 |
| 2012 |
China Open
|
1/32 | Jelena Jankovic |
6-2
6-4 |
| 2011 |
Western & Southern Financial Group Women
|
Championship | Jelena Jankovic |
6-7
1-6 |
| 2011 |
Porsche Tennis Grand Prix
|
Championship | Andrea Petkovic |
3-6
6-1 6-3 |
| 2011 |
Sony Ericsson Open
United States, Florida, Miami |
Championship | Andrea Petkovic |
2-6
6-2 6-4 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2020 |
Roland Garros WTA
|
1/64 | Tsvetana Pironkova |
6-3
6-3 |
| 2020 |
Tipsport Charity Cup Women
|
Championship | Andrea Petkovic |
6-3
6-3 |
| 2020 |
Tipsport Charity Cup Women
|
Championship | Karolina Muchova |
1-6
3-6 |
| 2019 |
BGL BNP Paribas Luxembourg Open
|
1/8 | Antonia Lottner |
6-1
- |
| 2019 |
BGL BNP Paribas Luxembourg Open
|
1/16 | Andrea Petkovic |
0-6
6-4 6-4 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2017 |
US Open WTA
|
1/64 | Petra Kvitova |
7-5
7-5 |
| 2017 |
Citi Open
|
1/16 | Oceane Dodin |
6-4
3-6 0-2 |
| 2017 |
NanChang Open
|
1/8 | Jing-Jing Lu |
2-6
6-1 6-2 |
