Stadium: COURT 6 Round: 25 Ground: Clay
| WTA Hamburg | 2021/07/08 14:15 | Zaja, Anna v Elena-Gabriela Ruse | 2-6,2-6 |
| WTA Hamburg | 2021/07/07 11:30 | Zaja, Anna v Viktoriya Tomova | 0-6,6-3,7-5 |
| WTA Hamburg | 2021/07/06 08:00 | Zaja, Anna v Gerlach, Katharina | 7-5,3-6,6-4 |
| WTA Hamburg | 2021/07/05 08:00 | Magdalena Frech v Zaja, Anna | 0-0 |
| WTA Hamburg | 2021/07/05 08:00 | Jasmin Jebawy v Zaja, Anna | 2-6,3-6 |
| WTA Bad Homburg | 2021/06/21 11:30 | Zaja, Anna v Ann Li | 0-6,4-6 |
| WTA Bad Homburg | 2021/06/20 09:00 | Zaja, Anna v Julia Middendorf | 6-2,7-5 |
| ITF W25 Jonkoping | 2021/06/16 11:10 | Carol Zhao v Zaja, Anna | 6-4,4-6,6-2 |
| WTA Prague | 2021/07/10 11:55 | Kolodziejova, Miriam v Conny Perrin | 2-6,3-6 |
| ITF W25 Wroclaw | 2021/07/03 12:00 | Chloe Paquet v Kolodziejova, Miriam | 3-6,6-4,7-5 |
| ITF W25 Wroclaw | 2021/07/02 11:50 | Diana Marcinkevica v Kolodziejova, Miriam | 4-6,5-7 |
| ITF W25 Wroclaw | 2021/07/01 11:00 | Kolodziejova, Miriam v Andrea Gamiz | 6-2,6-2 |
| ITF W25 Wroclaw | 2021/06/30 09:30 | Kolodziejova, Miriam v Valeriya Strakhova | 6-0,6-7,6-4 |
| ITF W25 Klosters | 2021/06/23 11:20 | Lena Papadakis v Kolodziejova, Miriam | 7-5,6-4 |
| ITF W60 Stare Splavy | 2021/06/16 08:00 | Anna Bondar v Kolodziejova, Miriam | 6-4,6-4 |
| ITF W60 Stare Splavy | 2021/06/15 07:55 | Tayisiya Morderger v Kolodziejova, Miriam | 2-6,6-4,7-10 |