Stadium: Court 2 Round: 54 Ground: Clay
| ITF W25 Marbella | 2021/09/01 08:00 | Marina Bassols Ribera v Poznikhirenko, Ganna | 6-3,6-0 |
| ITF - W15 Monastir | 2021/08/11 17:00 | Poznikhirenko, Ganna v Ueda, Ramu | 7-5,6-7,1-6 |
| ITF - W15 Monastir | 2021/08/06 07:30 | Poznikhirenko, Ganna v Noelia Bouzo Zanotti | 3-6,6-1,6-4 |
| ITF - W15 Monastir | 2021/08/05 10:30 | Poznikhirenko, Ganna v Rivera Corado | 6-1,6-1 |
| ITF - W15 Monastir | 2021/08/04 18:10 | Poznikhirenko, Ganna v Astrid Cirotte | 6-2,7-6 |
| ITF W25 Kyiv | 2021/07/22 07:00 | Poznikhirenko, Ganna v Su Jeong Jang | 6-7,5-7 |
| ITF W25 Kyiv | 2021/07/21 08:55 | Poznikhirenko, Ganna v Kostenko, L. | 6-1,6-0 |
| ITF W25 Madrid | 2021/06/15 07:00 | Poznikhirenko, Ganna v Viktoria Morvayova | 4-6,0-6 |
| UTR Pro Tennis Series Bucharest Women | 2021/09/19 07:00 | Oana Georgeta Simion v Gaspar-Ivan, Ioana | 4-6,6-3,1-6 |
| UTR Pro Tennis Series Bucharest Women | 2021/09/18 07:00 | Oana Georgeta Simion v Daria Lodikova | 7-6,6-1 |
| UTR Pro Tennis Series Bucharest Women | 2021/09/17 08:00 | Oana Georgeta Simion v Dimitrova, Daniella | 6-4,6-3 |
| UTR Pro Tennis Series Bucharest Women | 2021/09/16 08:30 | Oana Georgeta Simion v Victoria Borodulina | 6-1,6-1 |
| UTR Pro Tennis Series Bucharest Women | 2021/09/15 10:00 | Iulia Andreea Ionescu v Oana Georgeta Simion | 0-6,0-6 |
| ITF W25 Trieste | 2021/09/03 09:30 | Oana Georgeta Simion v Tara Wurth | 4-6,4-6 |
| ITF W25 Trieste | 2021/09/02 10:25 | Oana Georgeta Simion v Guiomar Maristany Zuleta De Reales | 6-2,6-2 |
| ITF W25 Trieste | 2021/09/01 09:50 | Mrdeza, Tereza v Oana Georgeta Simion | 3-6,5-7 |