Stadium: Centre Court Versmold Round: 26 Ground: Clay
| Croissy-Beaubourg, Singles W-WITF-FRA-09A | 2017/03/31 15:00 | Zaja, Anna v Hogenkamp, Richel | 6-3,3-6,2-6 |
| ITF W60 Versmold | 2021/07/28 11:00 | Hogenkamp, Richel v Joelle Lilly Sophie Steur | 6-4,7-6 |
| ITF W60 Olomouc | 2021/07/21 12:55 | Paula Ormaechea v Hogenkamp, Richel | 6-4,6-1 |
| ITF W60 Biarritz | 2021/07/15 09:00 | Leolia Jeanjean v Hogenkamp, Richel | 6-2,6-4 |
| ITF W60 Biarritz | 2021/07/13 10:55 | Emma Navarro v Hogenkamp, Richel | 4-6,3-6 |
| ITF W60 Amstelveen | 2021/07/07 12:05 | Lemoine, Quirine v Hogenkamp, Richel | 5-7,6-2,6-0 |
| ITF W25 The Hague | 2021/07/03 08:00 | Panna Udvardy v Hogenkamp, Richel | 6-3,7-5 |
| ITF W25 The Hague | 2021/07/02 09:30 | Hogenkamp, Richel v Stephanie Wagner | 6-4,3-6,6-2 |
| ITF W25 The Hague | 2021/07/01 16:00 | Hogenkamp, Richel v Caregaro, Martina | 6-4,6-2 |
| ITF W60 Versmold | 2021/07/28 16:35 | Zaja, Anna v Sofia Shapatava | 6-1,3-6,6-1 |
| ITF W60 Olomouc | 2021/07/23 08:00 | Panna Udvardy v Zaja, Anna | 6-2,6-2 |
| ITF W60 Olomouc | 2021/07/22 10:45 | Zaja, Anna v Simona Waltert | 7-6,6-1 |
| ITF W60 Olomouc | 2021/07/20 11:45 | Zaja, Anna v Kolodziejova, Miriam | 7-5,7-5 |
| 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 |