In order to find out, we created a formula to determine every match's upset magnitude.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2013 |
Apia International Sydney
Australia, Sydney |
1/16 | Roberta Vinci |
7-5
7-5 |
| 2012 |
Qatar Airways Tournament of Champions, Final Stage
|
Semi Finals | Nadia Petrova |
6-7
6-1 6-4 |
| 2012 |
Estoril Open
Portugal, Estoril |
Quarter Finals | Roberta Vinci |
6-2
1-6 6-4 |
| 2011 |
Western & Southern Financial Group Women
|
Championship | Nadia Petrova |
3-6
6-0 4-6 |
| 2011 |
Qatar Ladies Open
Qatar, Doha |
Championship | Nadia Petrova |
6-4
6-2 |
| 2010 |
Toray Pan Pacific Open
Japan, Tokyo |
Championship | Roberta Vinci |
5-7
4-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2014 |
Family Circle Cup
|
1/32 | Marina Erakovic |
4-6
6-3 6-4 |
| 2014 |
Sony Open Tennis
United States, Florida, Miami |
1/32 | Sabine Lisicki |
6-3
4-6 4-6 |
| 2014 |
Sony Open Tennis
United States, Florida, Miami |
1/64 | Nadia Petrova |
7-5
1-6 6-4 |
| 2014 |
BNP Paribas Open
United States, California, Indian Wells |
1/64 | Silvia Soler-Espinosa |
1-1
|
| 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 |
