Stadium: Indoor 8 Round: 62 Ground: Synthetic outdoor
| ITF Women Hamamatsu | 2018/10/14 07:10 | Yukina Saigo v Chinatsu Shimizu | 6-1,6-4 |
| ITF Women Hamamatsu | 2018/10/14 02:00 | Yukina Saigo v Utaka Kishigami | 6-4,6-2 |
| ITF Women Makinohara | 2018/10/08 00:30 | Yukina Saigo v Kisa Yoshioka | 6-7,6-3,3-6 |
| ITF Women Haren | 2018/08/31 09:00 | Yukina Saigo v Natalia Siedliska | 4-6,4-6 |
| ITF Women Haren | 2018/08/30 13:05 | Yukina Saigo v Emma Lene | 6-2,6-2 |
| ITF Women Haren | 2018/08/28 09:50 | Yukina Saigo v Regina Husak | 6-7,6-1,6-1 |
| ITF Women Wanfercee-Baulet | 2018/08/24 15:30 | Yukina Saigo v Caroline Romeo | 6-7,4-6 |
| ITF Women Wanfercee-Baulet | 2018/08/22 12:15 | Yukina Saigo v Victoria Kalaitzis | 7-5,5-7,6-3 |
| ITF Women Hamamatsu | 2018/10/14 02:00 | Ayano Sonoda v Ena Shibahara | 1-6,0-6 |
| ITF Women Hamamatsu | 2018/10/14 00:00 | Chie Kezuka v Ena Shibahara | 2-6,6-7 |
| ITF Women Stockton | 2018/10/02 19:55 | Ena Shibahara v Amra Sadikovic | 2-6,4-6 |
| ITF Women Stockton | 2018/10/01 19:45 | Mai Hontama v Ena Shibahara | 2-6,1-6 |
| ITF Women Stockton | 2018/09/30 21:30 | Giuliana Olmos v Ena Shibahara | 7-5,5-7,0-6 |
| ITF Women Landisville Qual | 2018/08/05 19:00 | Kimberly Birrell v Ena Shibahara | 6-0,6-4 |
| ITF Women Lexington Qual | 2018/07/31 13:00 | Kennedy Shaffer v Ena Shibahara | 6-4,6-2 |
| ITF Women Lexington Qual | 2018/07/30 15:55 | Ena Shibahara v Julia Elbaba | 4-6,6-3,6-2 |