| UTR Pro Tennis Series Barcelona Women | 2021/05/31 12:30 | Darja Semenistaja v Poznikhirenko, Ganna | 6-3,6-2 |
| UTR Pro Tennis Series Barcelona Women | 2021/06/01 08:00 | Richard, Zoe v Darja Semenistaja | 7-6,1-6,0-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/05/31 12:30 | Darja Semenistaja v Poznikhirenko, Ganna | 6-3,6-2 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/16 08:00 | Kostova, Elitsa v Darja Semenistaja | 6-1,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/15 06:00 | Kolar, Nastja v Darja Semenistaja | 4-6,4-6 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/14 09:00 | Darja Semenistaja v Katerina Dimitrova | 6-3,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/12 10:00 | Darja Semenistaja v Gaspar-Ivan, Ioana | 6-2,6-4 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/11 07:00 | Darja Semenistaja v Vaneva, Zinovia | 6-2,6-3 |
| UTR Pro Tennis Series Pazardzhik Women | 2021/05/10 10:00 | Yoanna Radulova v Darja Semenistaja | 1-6,0-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/05/31 12:30 | Darja Semenistaja v Poznikhirenko, Ganna | 6-3,6-2 |
| ITF W25 Salinas | 2021/05/12 16:15 | Haruna Arakawa v Poznikhirenko, Ganna | 6-4,6-2 |
| ITF W25 Salinas | 2021/05/11 16:15 | Poznikhirenko, Ganna v Celia Cervino Ruiz | 6-4,7-5 |
| ITF W25 Salinas | 2021/05/10 14:55 | Poznikhirenko, Ganna v Marian G P Cano | 6-3,6-3 |
| ITF W25 Salinas | 2021/05/06 16:55 | Poznikhirenko, Ganna v Victoria Rodriguez | 5-7,4-6 |
| ITF W25 Salinas | 2021/05/04 17:10 | Diana Marcinkevica v Poznikhirenko, Ganna | 6-2,2-6,2-6 |
| ITF W25 Oeiras | 2021/04/28 10:00 | Poznikhirenko, Ganna v Marina Melnikova | 6-3,4-6,1-6 |
| ITF W25 Oeiras | 2021/04/27 12:50 | Astakhova, Darya v Poznikhirenko, Ganna | 6-1,0-6,4-6 |