Stadium: Court 3 Round: 19 Ground: Hardcourt outdoor
| ITF - W15 Hinode | 2023/03/20 03:00 | Nagomi Higashitani v Karen Tsutsumi | 5-7,3-6 |
| ITF - W15 Hinode | 2023/03/19 01:00 | Karen Tsutsumi v Michiru Furuya | 6-2,6-1 |
| ITF - W25 Yokohama | 2022/11/09 01:00 | Karen Tsutsumi v Sakura Hosogi | 2-6,4-6 |
| ITF - W25 Yokohama | 2020/03/03 05:25 | Himeno Sakatsume v Karen Tsutsumi | 6-3,6-1 |
| ITF - W25 Yokohama | 2020/03/03 01:00 | Karen Tsutsumi v Yui Chikaraishi | 6-4,7-6 |
| ITF Women Hamamatsu | 2018/10/15 03:40 | Ayumi Koshiishi v Karen Tsutsumi | 6-2,6-1 |
| ITF Women Hamamatsu | 2018/10/14 04:00 | Karen Tsutsumi v Aoiko Goto | 4-6,7-5,6-1 |
| ITF Women Hamamatsu | 2018/10/14 00:00 | Karen Tsutsumi v Marie Shindo | 6-3,7-6 |