Stadium: Court 1 Round: 54 Ground: Clay
| ITF W15 Sharm El Sheikh | 2021/03/17 15:15 | Sarah Rebecca Sekulic v Matilda Mutavdzic | 0-6,3-6 |
| ITF W15 Sharm El Sheikh | 2021/03/10 15:20 | Sarah Rebecca Sekulic v Miyabi Inoue | 4-6,2-6 |
| ITF W25 Potchefstroom | 2021/02/17 07:00 | Sandra Samir v Sarah Rebecca Sekulic | 6-1,4-6,6-1 |
| ITF W25 Potchefstroom | 2021/02/16 07:00 | Sarah Rebecca Sekulic v Ksenia Laskutova | 6-4,0-6,10-4 |
| ITF W25 Potchefstroom | 2021/02/15 11:30 | Sarah Rebecca Sekulic v Leigh Van Zyl | 6-4,6-2 |
| ITF W25 Potchefstroom | 2021/02/08 11:35 | Sarah Rebecca Sekulic v Isabella Kruger | 5-7,3-6 |
| ITF W25 Hamburg | 2021/01/10 13:00 | Nicole Rivkin v Sarah Rebecca Sekulic | 6-4,7-6 |
| ITF W25 Porto | 2020/09/27 13:30 | Gergana Topalova v Sarah Rebecca Sekulic | 6-3,6-4 |
| ITF W25 Otocec | 2021/05/31 09:05 | Beatriz Haddad Maia v Nastasja Schunk | 6-4,6-4 |
| ITF W25 Otocec | 2021/05/30 08:00 | Mila Masic v Nastasja Schunk | 1-6,0-6 |
| WTA Stuttgart | 2021/04/19 15:00 | Belinda Bencic v Nastasja Schunk | 6-4,6-2 |
| WTA Stuttgart | 2021/04/18 11:10 | Noma Noha Akugue v Nastasja Schunk | 0-6,4-6 |
| WTA Stuttgart | 2021/04/17 12:25 | Nastasja Schunk v Daniela Seguel | 6-4,6-4 |
| ITF W15 Antalya | 2021/04/08 06:55 | Nastasja Schunk v Miriam Kolodziejova | 2-6,4-6 |
| ITF W15 Antalya | 2021/04/07 08:50 | Nastasja Schunk v Lucia Cortez Llorca | 6-1,7-6 |
| ITF W15 Antalya | 2021/04/06 07:00 | So-Ra Lee v Nastasja Schunk | 2-6,3-6 |