Stadium: Court 2 Round: 54
| ITF Women Pelham | 2018/04/10 23:30 | Osaka, Mari v Haas, Barbara | 6-4,6-7,0-6 |
| Jackson, Singles W-WITF-USA-09A | 2018/04/04 15:00 | Osaka, Mari v Sanesi, Gaia | 5-7,4-6 |
| Wesley Chapel, Singles Qualifying W-WITF-USA-03A | 2018/01/23 19:40 | Osaka, Mari v Ianchuk, Olga | 6-7,4-6 |
| ITF Women Orlando Qual | 2018/01/14 15:00 | Osaka, Mari v Whoriskey, Caitlin | 3-6,6-7 |
| ITF Women Daytona Beach | 2018/01/12 15:00 | Osaka, Mari v Grace Min | 6-7,4-6 |
| ITF Women Daytona Beach | 2018/01/11 16:30 | Elena-Gabriela Ruse v Osaka, Mari | 6-7,3-6 |
| ITF Women Daytona Beach | 2018/01/11 01:05 | Osaka, Mari v Kyoka Okamura | 6-1,6-1 |
| WTA Honolulu Qual | 2017/11/19 22:45 | Osaka, Mari v Haruka Kaji | 3-6,5-7 |
| ITF Women Tel Aviv | 2018/03/22 08:00 | Daniel, Kana v Lechemia, Elixane | 4-6,3-6 |
| ITF Women Tel Aviv | 2018/03/21 12:10 | Daniel, Kana v Danielle Daley | 7-5,6-1 |
| ITF Women Ramat Hasharon | 2018/03/17 08:00 | Daniel, Kana v Scholsen, Helene | 0-6,6-7 |
| ITF Women Ramat Hasharon | 2018/03/16 09:30 | Daniel, Kana v Adler, Lou | 6-2,6-2 |
| ITF Women Ramat Hasharon | 2018/03/15 09:55 | Nicholls, Olivia v Daniel, Kana | 6-7,2-6 |
| ITF Women Ramat Hasharon | 2018/03/14 13:45 | Eliessa Vanlangendonck v Daniel, Kana | 6-7,4-6 |
| Orlando, Singles Qualifying W-WITF-USA-02A | 2018/03/06 16:30 | Daniel, Kana v Alana Smith | 6-4,3-6,3-6 |
| ITF Women Petit-Bourg | 2018/01/17 15:00 | Daniel, Kana v Zlochova, Zuzana | 4-6,1-6 |