Stadium: Court 8 Round: 44
| ITF Women Daegu Qual | 2018/06/18 02:30 | Chisa Hosonuma v Hoyeon Nor | 7-6,6-3 |
| ITF Women Gyeongsan | 2018/06/13 05:55 | Chisa Hosonuma v Yeong Won Jeong | 4-6,3-6 |
| ITF Women Sangju | 2018/06/08 02:00 | Chisa Hosonuma v Ho Ching Wu | 2-6,3-6 |
| ITF Women Sangju | 2018/06/07 01:00 | Aiko Yoshitomi v Chisa Hosonuma | 5-7,3-6 |
| ITF Women Sangju | 2018/06/06 03:25 | Chisa Hosonuma v Kwan Yau Ng | 2-6,6-1,6-3 |
| ITF Women Karuizawa | 2018/05/22 02:35 | Chisa Hosonuma v Ari Matsumoto | 5-7,2-6 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Chisa Hosonuma v Michika Ozeki | 6-7,2-6 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Chisa Hosonuma v Naoko Eto | 6-0,6-0 |
| ITF Women Daegu Qual | 2018/06/18 02:00 | Satsuki Koike v Warona Mdlulwa | 6-0,6-0 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Satsuki Koike v Se Jin Lee | 6-3,6-0 |
| ITF Women Gyeongsan | 2018/06/16 01:00 | Hanna Chang v Satsuki Koike | 6-2,6-4 |
| ITF Women Gyeongsan | 2018/06/15 02:40 | Satsuki Koike v Zhibek Kulambayeva | 5-7,6-3,7-6 |
| ITF Women Gyeongsan | 2018/06/14 04:50 | Eunhye Lee v Satsuki Koike | 4-6,2-6 |
| ITF Women Gyeongsan | 2018/06/13 03:40 | Fatima Bizhukova v Satsuki Koike | 2-6,6-2,1-6 |
| ITF Women Gyeongsan Qual | 2018/06/12 04:50 | Sujin Yoon v Satsuki Koike | 4-6,2-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Satsuki Koike v Mihoki Miyahara | 6-2,6-2 |