Stadium: COURT A Round: 54 Ground: Synthetic outdoor
| ITF Women Makinohara | 2018/10/07 03:00 | Kotomi Takahata v Робу Кажитани | 7-5,7-5 |
| ITF Women Nanao | 2018/08/29 05:20 | Kotomi Takahata v Харука Кажи | 6-7,2-6 |
| ITF Women Nanao | 2018/08/27 01:00 | Kotomi Takahata v Minami Shuto | 7-6,6-3 |
| ITF Women Nanao | 2018/08/26 03:25 | Kotomi Takahata v Ayano Sonoda | 6-4,6-0 |
| ITF Women Tsukuba | 2018/08/19 03:00 | Kumi So v Kotomi Takahata | 6-4,6-4 |
| ITF Women Taipei | 2018/07/24 03:55 | Chin-Wei Chan v Kotomi Takahata | 4-6,6-3,6-3 |
| ITF Women Astana Qual | 2018/07/14 10:45 | Daria Kruzhkova v Kotomi Takahata | 6-2,6-1 |
| ITF Women Tianjin Qual | 2018/07/09 02:00 | Kotomi Takahata v Мей Ксю Ву | 3-6,6-2,2-6 |
| ITF Women Makinohara | 2018/10/07 03:00 | Хайне Огата v Сузухо Ошино | 6-1,3-6,2-6 |
| ITF Women Jakarta | 2018/07/19 03:00 | Сузухо Ошино v Аяка Окуно | 3-6,4-6 |
| ITF Women Jakarta | 2018/07/18 03:00 | Чихиро Такаяма v Сузухо Ошино | 7-6,3-6,2-6 |
| ITF Women Solo | 2018/07/11 02:30 | Сузухо Ошино v Аяка Окуно | 6-7,4-6 |
| ITF Women Solo | 2018/07/10 07:05 | Anastasia Shaulskaya v Сузухо Ошино | 5-7,1-6 |
| ITF Women Kofu | 2018/06/12 02:25 | Май Хонтама v Сузухо Ошино | 6-3,6-2 |
| ITF Women Karuizawa Qual | 2018/05/20 02:30 | Мана Кавамура v Сузухо Ошино | 6-2,6-2 |
| ITF Women Kurume | 2018/05/17 01:00 | Naomi Broady v Сузухо Ошино | 6-1,6-4 |