Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Campionatul Europei de Est - Feminin | 2020/12/02 08:00 | Diana Marcinkevica v Ganna Poznikhirenko | 6-7,2-6 |
| ITF - W25 Oeiras | 2021/04/30 12:30 | Diana Marcinkevica v Marina Melnikova | 1-6,6-4,3-6 |
| ITF - W25 Oeiras | 2021/04/29 10:00 | Nina Stadler v Diana Marcinkevica | 6-7,5-7 |
| ITF - W25 Oeiras | 2021/04/28 11:30 | Martina Spigarelli v Diana Marcinkevica | 6-7,1-6 |
| ITF - W25 Oeiras | 2021/04/19 12:30 | Sofya Lansere v Diana Marcinkevica | 6-3,6-3 |
| ITF - W25 Cordoba | 2021/04/06 15:50 | Irene Burillo Escorihuela v Diana Marcinkevica | 6-4,6-3 |
| ITF - W25 Villa Maria | 2021/03/30 17:55 | Despina Papamichail v Diana Marcinkevica | 1-6,7-6,6-3 |
| ITF - W25 Buenos Aires | 2021/03/24 16:10 | Katharina Gerlach v Diana Marcinkevica | 6-0,6-1 |
| ITF - W15 Manacor | 2021/03/12 09:00 | Leyre Romero Gormaz v Diana Marcinkevica | 7-6,2-6,6-4 |
| ITF - W25 Oeiras | 2021/04/28 10:00 | Ganna Poznikhirenko v Marina Melnikova | 6-3,4-6,1-6 |
| ITF - W25 Oeiras | 2021/04/27 12:50 | Darya Astakhova v Ganna Poznikhirenko | 6-1,0-6,4-6 |
| ITF - W25 Oeiras | 2021/04/20 09:00 | Ganna Poznikhirenko v Simona Waltert | 3-6,4-6 |
| ITF - W25 Oeiras | 2021/04/19 09:20 | Ganna Poznikhirenko v Victoria Jimenez Kasintseva | 6-3,6-1 |
| ITF - W25 Oeiras | 2021/04/18 12:00 | Ganna Poznikhirenko v Alexandra Silva | 6-1,6-2 |
| ITF - W60 Oeiras | 2021/04/11 13:00 | Diane Parry v Ganna Poznikhirenko | 6-3,7-5 |
| ITF - W15 Sharm El Sheikh | 2021/02/13 08:00 | Ganna Poznikhirenko v Lucia Bronzetti | 6-4,2-6,6-7 |
| ITF - W15 Sharm El Sheikh | 2021/02/12 09:40 | Julie Belgraver v Ganna Poznikhirenko | 4-6,4-6 |