| ITF W25 Lagos | 2021/10/14 15:20 | Antonia Ruzic v Nastasja Schunk | 6-2,6-3 |
| ITF W25 Lagos | 2021/10/13 13:25 | Bianca Turati v Nastasja Schunk | 7-5,4-6,3-6 |
| ITF W25 Loule | 2021/10/07 12:50 | Harmony Tan v Nastasja Schunk | 6-1,6-4 |
| ITF W25 Loule | 2021/10/06 12:40 | Martina Di Giuseppe v Nastasja Schunk | 2-6,1-6 |
| ITF W80 Wiesbaden | 2021/09/20 10:45 | Nastasja Schunk v Kamilla Bartone | 3-6,6-4,7-10 |
| WTA Karlsruhe | 2021/09/10 14:15 | Jaqueline Adina Cristian v Nastasja Schunk | 6-1,6-1 |
| WTA Karlsruhe | 2021/09/09 15:25 | Nastasja Schunk v Astra Sharma | 6-2,6-4 |
| WTA Karlsruhe | 2021/09/08 08:00 | Nastasja Schunk v Katharina Hobgarski | 6-0,3-6,7-5 |
| ITF W15 Sharm El Sheikh | 2021/11/09 09:55 | Anna Ulyashchenko v Sophie Greiner | 6-2,6-4 |
| ITF W15 Sharm El Sheikh | 2021/11/08 08:00 | Sophie Greiner v Alina Michalitsch | 7-6,6-3 |
| ITF W15 Sharm El Sheikh | 2021/11/02 08:00 | Sophie Greiner v Zongyu Li | 0-6,2-6 |
| ITF W15 Sharm El Sheikh | 2021/11/01 10:30 | Ritage Faizy v Sophie Greiner | 0-6,0-6 |
| ITF W25 Braunschweig | 2021/08/23 16:35 | Lena Papadakis v Sophie Greiner | 6-4,6-4 |
| ITF W15 Warmbad-Villach | 2021/08/16 12:30 | Sophie Greiner v Diana Martynov | 1-6,5-7 |
| ITF W15 Warmbad-Villach | 2021/08/15 07:00 | Noa Krznaric v Sophie Greiner | 6-1,0-6,7-10 |
| ITF W15 Heraklion | 2021/05/24 08:00 | Sophie Greiner v Helena Stevic | 4-6,1-6 |