Stadium: Court C Round: 25
| ITF Women Nanao | 2018/08/28 03:00 | Himeno Sakatsume v Michika Ozeki | 6-2,6-7,6-4 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/22 00:30 | Chihiro Muramatsu v Michika Ozeki | 6-1,6-2 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/20 02:50 | Michika Ozeki v Nishimoto, Megumi | 6-3,7-5 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/15 02:00 | Michika Ozeki v Xiyu Wang | 1-6,2-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/13 02:00 | Michika Ozeki v Shiho Akita | 6-1,6-2 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/12 03:55 | Michika Ozeki v Lorbergs, Genevieve | 6-4,6-2 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/11 06:45 | Michika Ozeki v Inoue, Akari | 6-3,6-4 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/05 04:15 | Michika Ozeki v Ayumi Koshiishi | 7-6,5-7,3-6 |
| ITF Women Kyoto | 2018/09/03 01:00 | Ayaka Ozeki v Kezuka, Chie | 6-3,5-7,6-3 |
| ITF Women Nanao | 2018/08/26 05:00 | Ayumi Koshiishi v Ayaka Ozeki | 4-6,6-3,6-3 |
| ITF Women Hammamet | 2018/06/11 09:00 | Yuka Hosoki v Ayaka Ozeki | 6-0,7-6 |
| ITF Women Hammamet | 2018/06/10 08:00 | Ayaka Ozeki v Rajmohan, Niditra | 6-1,6-0 |
| ITF Women Hammamet | 2018/06/05 10:35 | Ayaka Ozeki v Eliessa Vanlangendonck | 2-6,3-6 |
| ITF Women Hammamet | 2018/06/03 12:00 | Ayaka Ozeki v Ata, Sarra | 7-5,6-1 |
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Ayaka Ozeki v Haraguchi, Sae | 2-6,6-4,3-6 |
| ITF Women Kyoto | 2017/09/04 01:00 | Ayaka Ozeki v Nishio, Momoko | 6-4,1-6,6-7 |