Osaka hasn't lost a match since the COVID-19 lockdown ended last summer.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Australian Open, Qualification ATP
|
1/64 | Taylor Fritz |
6-4
3-6 7-6 |
| 2017 |
Brisbane International, Qualification
|
1/8 | Yannick Hanfmann |
6-4
7-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Internazionali BNL d'Italia
|
1/16 | Karolina Pliskova |
6-2
6-3 |
| 2021 |
Internazionali BNL d'Italia
|
1/32 | Anastasija Sevastova |
3-6
6-1 6-3 |
| 2021 |
Madrid Open
|
1/8 | Paula Badosa Gibert |
6-7
7-6 6-0 |
| 2021 |
Madrid Open
|
1/16 | Anastasija Sevastova |
6-3
6-3 |
| 2021 |
Madrid Open
|
1/32 | Anastasija Sevastova |
0-6
3-6 |
| 2021 |
Madrid Open, Qualification
|
1/24 (Special Qual) | Anastasija Sevastova |
3-6
6-4 6-3 |
