Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF W25 Fort Worth | 2022/10/17 15:00 | Ania Hertel v Okuno, Ayaka | 6-3,6-2 |
| ITF W60 Las Vegas | 2022/10/10 18:15 | Okuno, Ayaka v Mohamad, Shatoo | 2-6,2-6 |
| ITF W25 Austin | 2022/09/26 16:00 | Eryn Cayetano v Okuno, Ayaka | 6-2,6-3 |
| ITF W25 Dallas | 2022/07/25 14:00 | Okuno, Ayaka v Jessica Hinojosa Gomez | 0-6,5-7 |
| ITF W15 Rancho Santa Fe | 2022/06/01 16:00 | Okuno, Ayaka v Haley Giavara | 5-7,3-6 |
| ITF W25 Naples | 2022/05/17 13:55 | Okuno, Ayaka v Akasha Urhobo | 2-6,2-6 |
| ITF W25 Naples | 2022/05/16 13:30 | Okuno, Ayaka v Carolina Bohrer Martins | 6-4,6-3 |
| ITF W25 Daytona Beach | 2022/05/02 14:00 | Tchakarova, Verginie v Okuno, Ayaka | 3-6,6-4,10-6 |
| ITF W25 Hamamatsu | 2019/10/14 01:00 | Mabuchi, Mami v Shuto, Minami | 4-6,0-6 |
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 02:00 | Mabuchi, Mami v Matsumoto, Ari | 5-7,0-6 |