Stadium: Araba Aldundia Round: 54 Ground: Hardcourt outdoor
| ITF W40 Palma del Rio | 2023/06/25 09:10 | Mariia Kostiuk v Yasmine Mansouri | 2-6,4-6 |
| ITF W25 Setubal | 2023/06/05 11:00 | Carolina Mesquita v Mariia Kostiuk | 7-5,2-6,10-6 |
| ITF W40 Montemor-O-Novo | 2023/05/29 12:00 | Eva A Sande v Mariia Kostiuk | 7-6,6-2 |
| ITF W40 Montemor-O-Novo | 2023/05/28 15:00 | Nicole Giannini v Mariia Kostiuk | 1-6,3-6 |
| ITF W25 Santa Margherita | 2023/05/02 07:55 | Yaroslava Bartashevich v Mariia Kostiuk | 6-2,6-2 |
| ITF W25 Santa Margherita | 2023/04/24 10:40 | Mariia Kostiuk v Alessandra Mazzola | 1-6,4-6 |
| ITF W25 Santa Margherita | 2023/04/03 08:30 | Mariia Kostiuk v Michaela Laki | 1-6,0-6 |
| ITF W25 Selva Gardena | 2022/11/27 12:00 | Mariia Kostiuk v Dasha Lopatetskaya | 0-6,2-6 |
| ITF W100 Vitoria-Gasteiz | 2023/07/16 13:30 | Jimena Gomez v Sofia Milatova | 2-6,0-6 |
| ITF W60 Liepaja | 2023/07/03 09:55 | Emily Welker v Sofia Milatova | 7-5,6-2 |
| ITF W60 Liepaja | 2023/07/02 14:50 | Elaine Genovese v Sofia Milatova | 2-6,6-2,5-7 |
| ITF W60 Ricany | 2023/06/14 13:25 | Sofia Milatova v Reka-Luca Jani | 4-6,5-7 |
| ITF W60 Ricany | 2023/06/13 11:10 | Sofia Milatova v Radka Zelnickova | 6-4,6-2 |
| ITF W60 Ricany | 2023/06/12 07:50 | Maria Jose Portillo Ramirez v Sofia Milatova | 6-0,3-6,6-7 |
| ITF W60 Ricany | 2023/06/11 07:55 | Linda Sevcikova v Sofia Milatova | 3-6,2-6 |
| ITF W60 Grado | 2023/05/23 16:50 | Lucie Havlickova v Sofia Milatova | 6-2,6-4 |