In order to find out, we created a formula to determine every match's upset magnitude.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2010 |
Sony Ericsson Open
United States, Florida, Miami |
Championship | Roberta Vinci |
6-3
3-6 4-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2012 |
Australian Open, Qualification WTA
|
1/48 (Special Qual) | Irina Khromacheva |
6-4
4-6 0-1 |
| 2012 |
ASB Classic, Qualification
|
Championship | Alison Riske |
2-6
7-6 2-6 |
| 2011 |
ASB Classic, Qualification
|
1/8 | Regina Kulikova |
7-6
6-1 |
| 2011 |
ASB Classic, Qualification
|
1/16 | Regina Kulikova |
2-6
7-6 1-6 |
| 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 |
