Stadium: Centre Court Versmold Round: 25 Ground: Clay
| WTA Bad Homburg | 2021/06/20 09:00 | Piter, Katarzyna v Nastasja Schunk | 7-6,2-6,7-6 |
| ITF W25 Denain | 2021/06/16 09:15 | Nastasja Schunk v Paula Ormaechea | 2-6,6-3,6-7 |
| ITF W25 Denain | 2021/06/15 10:05 | Nastasja Schunk v Sinja Kraus | 6-2,6-2 |
| ITF W25 Denain | 2021/06/14 10:10 | Sarah Rebecca Sekulic v Nastasja Schunk | 1-6,2-6 |
| 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 | Bencic, Belinda 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 Palermo | 2021/07/19 14:00 | Arruabarrena, L. v Grace Min | 3-6,4-6 |
| WTA Budapest | 2021/07/10 08:00 | Arruabarrena, L. v Victoria Duval | 2-6,2-6 |
| WTA Bastad | 2021/07/07 10:20 | Rebecca Peterson v Arruabarrena, L. | 6-1,6-1 |
| WTA Bastad | 2021/07/06 13:55 | Arruabarrena, L. v Gatto-Monticone, Giulia | 6-2,6-3 |
| Wimbledon Women | 2021/06/22 17:25 | Arruabarrena, L. v Jana Fett | 6-7,5-7 |
| WTA Bol | 2021/06/07 10:40 | Arruabarrena, L. v Cadantu, Alexandra | 0-6,5-7 |
| Open de France - Femmes | 2021/05/31 15:25 | Arruabarrena, L. v Varvara Gracheva | 2-6,3-6 |
| Open de France - Femmes | 2021/05/28 11:40 | Arruabarrena, L. v Carol Zhao | 6-4,6-2 |