Stadium: Court 1 Round: 25 Ground: Clay
| WTA Strasbourg Qual | 2018/05/19 09:00 | Marina Melnikova v Ganna Poznikhirenko | 6-1,6-4 |
| 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 |
| ITF W15 Sharm El Sheikh | 2021/02/11 07:30 | Ramu Ueda v Ganna Poznikhirenko | 7-5,6-7,2-6 |
| ITF W25 Oeiras | 2021/04/23 11:00 | Marina Melnikova v Seone Mendez | 6-3,2-6,5-7 |
| ITF W25 Oeiras | 2021/04/22 14:00 | Chloe Paquet v Marina Melnikova | 6-2,4-6,3-6 |
| ITF W25 Oeiras | 2021/04/21 13:30 | Francisca Jorge v Marina Melnikova | 2-6,5-7 |
| ITF W60 Oeiras | 2021/04/15 11:25 | Alexandra Dulgheru v Marina Melnikova | 6-3,2-6,6-3 |
| WTA Bogota | 2021/04/04 17:30 | Nuria Parrizas-Diaz v Marina Melnikova | 7-6,4-6,6-1 |
| WTA Bogota | 2021/04/03 16:25 | Katarzyna Piter v Marina Melnikova | 5-7,0-6 |
| WTA St. Petersburg | 2021/03/13 08:00 | Xinyu Wang v Marina Melnikova | 6-2,6-3 |
| ITF W25 Manacor | 2021/03/04 08:55 | Marina Melnikova v Marina Bassols Ribera | 4-6,2-6 |