Stadium: C Round: 54 Ground: Hardcourt outdoor
| ITF Women Nanjing | 2018/04/08 02:00 | Gai, AO v Xiaodi You | 3-6,6-4,6-0 |
| ITF Women Nanjing | 2018/04/07 03:00 | Ye, Qiu Yu v Gai, AO | 6-3,3-6,2-6 |
| ITF Women Nanjing | 2018/04/06 03:00 | Gai, AO v Aldila Sutjiadi | 7-5,0-6,6-2 |
| ITF Women Nanjing | 2018/04/05 08:55 | Gai, AO v Eunhye Lee | 6-3,6-1 |
| ITF Women Nanjing | 2018/04/03 02:00 | Gai, AO v Wang, Dan Ni | 6-2,6-2 |
| ITF Women Nanjing | 2018/03/28 02:00 | Aldila Sutjiadi v Gai, AO | 6-1,6-0 |
| ITF Women Nanjing | 2018/03/27 04:20 | Yidi Yang v Gai, AO | 4-6,5-7 |
| ITF Women Nanjing | 2018/03/23 02:00 | Zhang, Kai Lin v Gai, AO | 7-5,3-6,6-1 |
| ITF Women Kashiwa Qual | 2018/04/01 03:00 | Okuno, Ayaka v Shiho Akita | 1-6,0-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/25 02:30 | Okuno, Ayaka v Silich, Alina | 1-6,1-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 04:00 | Robillard-Millette, Charlotte v Okuno, Ayaka | 1-6,1-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/23 01:00 | Okuno, Ayaka v Lee, So-Ra | 3-6,4-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/22 03:00 | Chiang, Yuki Kristina v Okuno, Ayaka | 6-1,5-7,1-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/20 02:40 | Erina Hayashi v Okuno, Ayaka | 0-6,7-6,3-6 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Okuno, Ayaka v Kyoka Okamura | 1-6,3-6 |
| Yokohama, Singles Qualifying W-WITF-JPN-01B | 2018/03/04 07:00 | Okuno, Ayaka v Ya-Hsuan Lee | 4-6,4-6 |