In order to find out, we created a formula to determine every match's upset magnitude.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2015 |
Generali Ladies Linz presented by voestalpine, Qualification
|
1/16 | Amandine Hesse |
3-6
2-6 |
| 2015 |
US Open, Qualification WTA
|
1/64 | Rebecca Peterson |
6-4
7-6 |
| 2015 |
Baku Cup, Qualification
|
1/12 (Special Qual) | Oksana Kalashnikova |
2-6
6-3 6-2 |
| 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 |
