Stadium: Court 3 Round: 44 Ground: Clay
| ITF W60 Montreux | 2019/09/02 08:25 | Andreea Ghitescu v Mariia Kostiuk | 6-1,6-1 |
| ITF W60 Concord | 2019/08/12 20:50 | Sophia Whittle v Mariia Kostiuk | 6-1,6-1 |
| ITF W60 Concord | 2019/08/12 16:59 | Theresa Papikian v Mariia Kostiuk | 3-6,5-7 |
| ITF W60 Concord | 2019/08/12 16:20 | Theresa Papikian v Mariia Kostiuk | 3-6,5-7 |
| ITF W60 Landisville | 2019/08/05 18:45 | Ayaka Okuno v Mariia Kostiuk | 6-2,6-2 |
| ITF W60 Ashland | 2019/07/22 16:35 | Mariia Kostiuk v Rhiann Newborn | 3-6,1-6 |
| ITF W25 Osprey | 2019/04/22 14:30 | Mariia Kostiuk v Chanelle Van Nguyen | 5-7,2-6 |
| ITF W15 Ceuta | 2019/09/12 10:30 | Victoria Kalaitzis v Blanca Cortijo Parreno | 6-0,6-1 |
| ITF W15 Ceuta | 2019/09/11 12:00 | Blanca Cortijo Parreno v Aleksandra Evdokimova | 6-3,6-2 |
| ITF W15 Don Benito | 2019/07/16 08:45 | Blanca Cortijo Parreno v Maria Aran T Garcia | 3-6,3-6 |
| ITF Women Nules | 2018/11/19 11:00 | Nora Ayala Serra v Blanca Cortijo Parreno | 6-3,6-0 |
| ITF Women Nules | 2018/11/17 11:00 | Blanca Cortijo Parreno v Carmen Garri Murcia | 6-1,6-4 |