Stadium: COURT 7 Round: 25 Ground: Hardcourt indoor
| ITF W25 Vienna | 2021/09/01 12:55 | Pospelova, Aleksandra v Miriam Bulgaru | 4-6,1-6 |
| ITF W25 Vienna | 2021/08/30 12:45 | Alexandra Osborne v Pospelova, Aleksandra | 6-7,5-7 |
| ITF W25 Vienna | 2021/08/29 14:00 | Pospelova, Aleksandra v Yui Chikaraishi | 6-1,4-6,10-2 |
| ITF W25 Vienna | 2021/08/29 10:00 | Pospelova, Aleksandra v Noka Juric | 6-3,6-2 |
| ITF W15 Bad Waltersdorf | 2021/08/25 07:00 | Antonia Ruzic v Pospelova, Aleksandra | 1-6,6-2,6-3 |
| ITF W15 Bad Waltersdorf | 2021/08/24 09:35 | Pospelova, Aleksandra v Barbara Dessolis | 3-6,6-3,10-3 |
| ITF W15 Bad Waltersdorf | 2021/08/23 13:30 | Pospelova, Aleksandra v Benedetta Ortenzi | 6-1,6-4 |
| ITF W15 Bad Waltersdorf | 2021/08/22 11:30 | Pospelova, Aleksandra v Kusy Alzugaray, Janika | 6-4,6-2 |
| ITF W25 Johannesburg | 2021/09/20 12:00 | Jenny Duerst v Anastasiia Poplavska | 7-5,6-1 |
| ITF W25 Johannesburg Qual | 2021/09/19 12:00 | Plitt, Mikayla v Anastasiia Poplavska | 1-6,0-6 |
| ITF W25 Johannesburg | 2021/09/13 10:35 | Caroline Romeo v Anastasiia Poplavska | 7-5,6-4 |
| ITF W25 Johannesburg | 2021/09/12 13:15 | Naledi Manyube v Anastasiia Poplavska | 1-6,0-6 |
| ITF W25 Almaty | 2021/08/25 05:00 | Anhzelika Isaeva v Anastasiia Poplavska | 6-2,6-3 |
| ITF W15 Moscow | 2021/07/20 13:00 | Anastasiia Poplavska v Maria Sholokhova | 4-6,7-6,4-6 |
| ITF - W15 Antalya | 2021/06/20 07:00 | Anastasiia Poplavska v Krystyna Pochtovyk | 5-7,4-6 |
| ITF W25 Madrid | 2021/06/13 08:15 | Anastasiia Poplavska v Noelia Zeballos | 3-6,2-6 |