Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF W25 Johannesburg | 2021/09/16 11:35 | Joanne Zuger v Zoe Kruger | 6-2,6-4 |
| ITF W25 Johannesburg | 2021/09/15 10:00 | Yuki Naito v Joanne Zuger | 2-6,2-6 |
| ITF W60 Montreux | 2021/09/08 07:30 | Joanne Zuger v Federica Di Sarra | 2-6,1-6 |
| ITF W60 Collonge-Bellerive | 2021/09/03 08:00 | Ipek Oz v Joanne Zuger | 6-3,6-2 |
| ITF W60 Collonge-Bellerive | 2021/09/02 11:15 | Jessika Ponchet v Joanne Zuger | 6-4,1-6,2-6 |
| ITF W60 Collonge-Bellerive | 2021/09/01 13:20 | Joanne Zuger v Anastasia Gasanova | 6-3,4-6,6-1 |
| ITF W25 Verbier | 2021/08/28 11:15 | Ylena In-Albon v Joanne Zuger | 2-6,6-3,6-4 |
| ITF W25 Verbier | 2021/08/27 10:35 | Sada Nahimana v Joanne Zuger | 4-6,2-6 |
| ITF W25 Johannesburg | 2021/09/16 09:50 | Polina Kudermetova v Isabella Kruger | 5-7,6-3,0-6 |
| ITF W25 Johannesburg | 2021/09/14 12:15 | Isabella Kruger v Akiko Omae | 6-4,6-1 |
| ITF W15 Monastir | 2021/08/26 14:30 | Hina Inoue v Isabella Kruger | 3-6,6-3,6-4 |
| ITF W15 Monastir | 2021/08/25 14:30 | Maria Paulina Perez Garcia v Isabella Kruger | 3-6,3-6 |
| ITF W15 Monastir | 2021/08/19 15:00 | Isabella Kruger v Aglaya Fedorova | 4-6,6-3,2-6 |
| ITF W15 Monastir | 2021/08/18 15:00 | Isabella Kruger v Nicole Poj | 6-0,6-1 |
| ITF W15 Monastir | 2021/07/13 09:30 | Emma Lene v Isabella Kruger | 6-2,6-4 |
| ITF W15 Monastir | 2021/07/07 08:25 | Solymar Colling v Isabella Kruger | 6-3,6-1 |