Stadion: Court 10 Round: 24 Ground: Clay
| ITF Damen - W60 - Oeiras | 2021/04/12 12:00 | Lea Boskovic v Sina Herrmann | 5-7,3-6 |
| ITF Damen - W60 - Oeiras | 2021/04/11 12:05 | Sina Herrmann v Raluca Georgiana Serban | 6-3,6-2 |
| ITF Damen - W60 - Bellinzona | 2021/04/05 08:00 | Seone Mendez v Sina Herrmann | 7-5,6-3 |
| ITF Damen - W60 - Bellinzona | 2021/04/04 08:00 | Sina Herrmann v Federica Di Sarra | 6-3,4-6,10-8 |
| ITF Frauen - W15 - Antalya | 2021/04/01 08:30 | Polina Leykina v Sina Herrmann | 7-5,6-3 |
| ITF Frauen - W15 - Antalya | 2021/03/31 08:25 | Sina Herrmann v Valeriya Strakhova | 7-6,7-5 |
| ITF Frauen - W15 - Antalya | 2021/03/26 09:25 | Lucia Cortez Llorca v Sina Herrmann | 5-7,6-1,6-4 |
| ITF Frauen - W15 - Antalya | 2021/03/25 09:35 | Sina Herrmann v Dorka Drahota Szabo | 7-5,6-0 |
| ITF Damen - W25 - Córdoba | 2021/04/08 13:00 | Despina Papamichail v Panna Udvardy | 3-6,6-2,2-6 |
| ITF Damen - W25 - Córdoba | 2021/04/07 15:10 | Andrea Lazaro Garcia v Despina Papamichail | 4-6,5-7 |
| ITF Damen - W25 - Villa Maria | 2021/04/01 17:35 | Susan Bandecchi v Despina Papamichail | 6-0,7-6 |
| ITF Damen - W25 - Villa Maria | 2021/03/30 17:55 | Despina Papamichail v Diana Marcinkevica | 1-6,7-6,6-3 |
| ITF Damen - W25 - Buenos Aires | 2021/03/23 15:55 | Despina Papamichail v Yuki Naito | 6-1,1-6,4-6 |
| ITF Damen - W25 - Newport Beach | 2021/03/05 17:30 | Beatriz Haddad Maia v Despina Papamichail | 6-0,7-5 |
| ITF Damen - W25 - Newport Beach | 2021/03/03 22:00 | Katherine Sebov v Despina Papamichail | 4-6,7-6,3-6 |
| ITF Damen - W25 - Boca Raton | 2021/02/25 17:20 | Despina Papamichail v Gabriela Talaba | 6-4,3-6,3-6 |