Stadium: Hard C8 Round: 44 Ground: Clay
| ITF W15 Antalya | 2019/12/10 11:30 | Katsiaryna Skachkova v Ena Kajevic | 2-6,5-7 |
| ITF W15 Antalya Qual | 2019/12/09 07:00 | Katsiaryna Skachkova v Ekaterina Ovcharenko | 6-4,6-2 |
| ITF W15 Antalya Qual | 2019/12/08 08:30 | Katsiaryna Skachkova v Alexandra Mironova | 4-6,6-3,10-7 |
| ITF W15 Antalya | 2019/12/03 07:00 | Katsiaryna Skachkova v Sapfo Sakellaridi | 4-6,4-6 |
| ITF W15 Antalya | 2019/11/27 08:00 | Kristin Younes v Katsiaryna Skachkova | 7-5,6-3 |
| ITF W25 Minsk | 2019/11/11 12:00 | Katsiaryna Skachkova v Suzan Lamens | 2-6,1-6 |
| ITF W15 Stockholm | 2019/10/29 12:00 | Katsiaryna Skachkova v Nicole Nadel | 3-6,6-4,1-6 |
| ITF W15 Stockholm | 2019/10/23 12:10 | Katsiaryna Skachkova v Melis Yasar | 1-6,6-7 |
| ITF W25 Solarino Qual | 2019/11/25 09:00 | Mariia Kostiuk v Giulia Martinelli | 3-6,1-6 |
| 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 |