Osaka hasn't lost a match since the COVID-19 lockdown ended last summer.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2016 |
Roland Garros WTA
|
1/32 | Karin Knapp |
3-6
4-6 |
| 2012 |
US Open, Qualification WTA
|
1/64 | Anastasija Sevastova |
6-4
7-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Volvo Car Open
|
1/16 | Catherine McNally |
7-6
2-6 6-4 |
| 2021 |
Volvo Car Open
|
1/32 | Anastasija Sevastova |
6-3
6-3 |
| 2021 |
Miami Open
|
Quarter Finals | Elina Svitolina |
3-6
2-6 |
| 2021 |
Miami Open
|
1/8 | Anastasija Sevastova |
6-1
7-5 |
| 2021 |
Miami Open
|
1/16 | Anastasija Sevastova | |
| 2021 |
Miami Open
|
1/32 | Anastasija Sevastova |
1-6
6-2 6-3 |
| 2021 |
Dubai Duty Free Tennis Championships
|
1/16 | Karolina Pliskova |
3-6
7-6 2-6 |
| 2021 |
Dubai Duty Free Tennis Championships
|
1/32 | Anastasija Sevastova |
6-0
6-3 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2017 |
Australian Open WTA
|
1/64 | Hsieh Su-wei |
3-6
0-2 |
| 2016 |
US Open WTA
United States, New York, Flushing Meadows |
1/64 | Johanna Larsson |
4-6
2-6 |
| 2016 |
Cincinnati Masters, Qualification
|
1/12 (Special Qual) | Kurumi Nara |
6-1
7-5 |
| 2016 |
Cincinnati Masters, Qualification
|
1/24 (Special Qual) | Karin Knapp |
7-6
3-6 6-4 |
