Stadium: Court 1 Round: 25 Ground: Clay
| 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 |
| ITF W25 Jonkoping | 2021/06/15 08:10 | Zuger, Joanne v Zaja, Anna | 5-7,4-6 |
| ITF W25 Liepaja | 2021/05/29 08:00 | Zaja, Anna v Daniela Vismane | 6-1,3-6,4-6 |
| Wimbledon Women | 2021/06/24 10:00 | Viktoriya Tomova v Lao, Danielle | 1-6,6-2,4-6 |
| Wimbledon Women | 2021/06/23 10:00 | Viktoriya Tomova v Irene Burillo Escorihuela | 6-2,6-2 |
| ITF W100 Nottingham | 2021/06/15 17:35 | Viktoriya Tomova v Oceane Dodin | 3-6,2-6 |
| WTA Nottingham | 2021/06/07 14:35 | Viktoriya Tomova v Nara, Kurumi | 4-6,7-6,2-6 |
| Open de France - Femmes | 2021/05/27 09:55 | Viktoriya Tomova v Nara, Kurumi | 3-6,6-0,4-6 |
| Open de France - Femmes | 2021/05/25 14:05 | Viktoriya Tomova v Vikhlyantseva, Natalia | 6-3,6-4 |
| WTA Belgrade | 2021/05/22 10:55 | Viktoriya Tomova v Paula Badosa | 1-6,2-6 |
| WTA Belgrade | 2021/05/21 13:45 | Viktoriya Tomova v Reka-Luca Jani | 6-1,2-6,7-5 |