Stadium: Court 14 Round: 62 Ground: Synthetic outdoor
| ITF Women Kyoto | 2018/09/02 01:00 | Ayano Sonoda v Anri Nagata | 1-6,1-6 |
| ITF Women Nanao | 2018/08/26 03:25 | Kotomi Takahata v Ayano Sonoda | 6-4,6-0 |
| ITF Women Antalya | 2018/06/04 07:30 | Ayano Sonoda v Marie Mettraux | 1-6,1-6 |
| ITF Women Antalya | 2018/05/30 09:10 | Ayano Sonoda v Melis Sezer | 0-6,2-6 |
| ITF Women Antalya Qual | 2018/05/28 11:10 | Ayano Sonoda v Stephanie Belovukovic | 7-6,1-6,5-7 |
| ITF Women Kurume Qual | 2018/05/13 08:40 | Mitsumi Kawasaki v Ayano Sonoda | 6-1,6-1 |
| ITF Women Nishi-Tama | 2018/03/17 01:00 | Ayano Sonoda v Sakura Hosogi | 4-6,4-6 |
| ITF Women Antalya | 2018/01/27 06:30 | Ayano Sonoda v Chihiro Takayama | 0-6,0-6 |
| 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 |
| ITF Women Lexington Qual | 2018/07/29 15:10 | Sophie Abrams v Ena Shibahara | 3-6,4-6 |