Stadium: Court 7 Round: 62 Ground: Clay
| ITF - W15 Sibenik | 2021/05/17 09:25 | Oleksandra Oliynykova v Andjela Jocovic | 6-4,6-1 |
| ITF - W15 Sibenik | 2021/05/16 07:30 | Oleksandra Oliynykova v Sylvie Zund | 6-0,6-4 |
| ITF - W25 Oeiras | 2021/04/27 15:10 | Carol Zhao v Oleksandra Oliynykova | 7-5,6-2 |
| ITF - W25 Oeiras | 2021/04/27 09:00 | Oleksandra Oliynykova v Sinja Kraus | 7-5,6-2 |
| UTR Pro Tennis Series Barcelona - Feminin | 2021/04/18 07:00 | Oleksandra Oliynykova v Pauline Courcoux | 7-6,6-3 |
| UTR Pro Tennis Series Barcelona - Feminin | 2021/04/17 10:00 | Oleksandra Oliynykova v Daria Krasnova | 1-6,6-4,7-5 |
| UTR Pro Tennis Series Barcelona - Feminin | 2021/04/15 11:00 | Oleksandra Oliynykova v Cheri Darley | 6-3,6-2 |
| UTR Pro Tennis Series Barcelona - Feminin | 2021/04/14 09:30 | Oleksandra Oliynykova v Oksana Selekhmeteva | 6-7,7-6,1-6 |
| ITF - W15 Sibenik | 2021/05/17 11:20 | Adriana Rajkovic v Diana Martynov | 3-6,3-6 |
| ITF - W15 Sibenik | 2021/05/16 08:00 | Diana Martynov v Ani Vangelova | 6-1,7-5 |
| ITF - W25 Calvi | 2021/04/13 08:00 | Alice Robbe v Diana Martynov | 6-2,6-2 |
| ITF - W25 Calvi | 2021/04/12 12:30 | Ginevra Montebruno v Diana Martynov | 1-6,1-6 |
| ITF - W15 Le Havre | 2021/03/22 08:25 | Diana Martynov v Lena Papadakis | 6-4,5-7,4-10 |
| ITF - W15 Le Havre | 2021/03/21 09:35 | Diana Martynov v Juliette Mazzoni | 6-2,6-1 |
| ITF - W15 Villena | 2021/02/09 10:00 | Mihaela Djakovic v Diana Martynov | 6-3,6-1 |
| ITF - W15 Villena | 2021/02/08 12:30 | Caitlyn Portela v Diana Martynov | 1-6,2-6 |