Williams became the first in history to own a career Golden Slam in singles and doubles.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2012 |
Unicef Open
|
1/16 | Sofia Arvidsson |
2-6
6-3 4-6 |
| 2011 |
Brussels Ladies Open
Belgium, Brussels |
Championship | Sofia Arvidsson |
3-6
6-3 6-3 |
| 2008 |
US Open WTA
United States, New York, Flushing Meadows |
Championship | Jelena Jankovic |
3-6
7-6 5-7 |
| 2008 |
Sony Ericsson Open
United States, Florida, Miami |
Championship | Jelena Jankovic |
7-6
2-6 6-7 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2015 |
Collector Swedish Open
|
1/16 | Lara Arruabarrena |
6-2
6-1 |
| 2014 |
Open GDF Suez De Limoges, Qualification
|
1/8 | Urszula Radwanska |
4-6
5-7 |
| 2014 |
Kremlin Cup By Bank Of Moscow, Qualification
|
1/16 | Evgeniya Rodina |
5-7
2-6 |
| 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 |
