Stadium: Court 6 Round: 62
| ITF Women Norman | 2018/11/10 08:30 | Okuno, Ayaka v Khrystyna Vozniak | 6-3,6-3 |
| ITF Women Lawrence | 2018/11/04 16:30 | Jackson, Emma v Okuno, Ayaka | 7-6,6-4 |
| ITF Women Lawrence | 2018/11/03 16:00 | Poile, Miranda v Okuno, Ayaka | 6-2,0-6,1-6 |
| ITF Women Toronto | 2018/10/27 15:25 | Okuno, Ayaka v Shaffer, Kennedy | 3-6,0-6 |
| ITF Women Saguenay | 2018/10/20 20:20 | Dasha Ivanova v Okuno, Ayaka | 6-3,7-5 |
| ITF Women Charleston | 2018/10/01 13:00 | Okuno, Ayaka v Jaeda Daniel | 2-6,0-6 |
| ITF Women Charleston | 2018/09/30 13:00 | Okuno, Ayaka v Allie Gretkowski | 6-1,7-5 |
| ITF Women Hilton Head | 2018/09/26 13:00 | Ksenia Kuznetsova v Okuno, Ayaka | 6-4,6-2 |
| ITF Women Norman | 2018/11/10 08:30 | Uzcategui, Aymet v Dalayna Hewitt | 1-6,4-6 |
| ITF Women Lawrence | 2018/11/05 17:10 | Ho, Jessica v Dalayna Hewitt | 3-6,6-3,6-2 |
| ITF Women Lawrence | 2018/11/04 18:00 | Dalayna Hewitt v Boren, Brynn | 6-1,6-3 |
| ITF Women Lawrence | 2018/11/03 16:00 | Dalayna Hewitt v Maltby, Felicity | 1-6,7-6,6-3 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/04/18 12:50 | Dalayna Hewitt v Geukens, Britt | 4-6,2-6 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/03/28 12:45 | Dalayna Hewitt v Hatouka, Yuliya | 2-6,3-6 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/03/20 08:00 | Dalayna Hewitt v Burrage, Jodie Anna | 4-6,6-4,3-6 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/03/15 09:40 | Nadia Podoroska v Dalayna Hewitt | 6-4,6-4 |