| ITF W60 Concord | 08/12 20:50 | 54 | Sophia Whittle v Mariya Kostyuk | 6-1,6-1 | |
| ITF W60 Concord | 08/12 16:59 | - | Theresa Papikian v Mariya Kostyuk | 3-6,5-7 | |
| ITF W60 Concord | 08/12 16:20 | 54 | Theresa Papikian v Mariia Kostiuk | 3-6,5-7 | |
| ITF W60 Landisville | 08/05 18:45 | 54 | Ayaka Okuno v Mariia Kostiuk | 6-2,6-2 | |
| ITF W60 Ashland | 07/22 16:35 | 54 | Mariia Kostiuk v Rhiann Newborn | 3-6,1-6 | |
| ITF W25 Osprey | 04/22 14:30 | 54 | Mariia Kostiuk v Chanelle Van Nguyen | 5-7,2-6 |