Stadium: Court 1 Round: 44 Ground: Clay
| ITF W25 Bydgoszcz | 2021/08/04 08:00 | Sina Herrmann v Carole Monnet | 6-7,6-7 |
| ITF W25 Bydgoszcz | 2021/08/03 08:00 | Sina Herrmann v Valeriya Olyanovskaya | 4-6,6-4,10-3 |
| ITF W25 Bydgoszcz | 2021/08/02 08:00 | Sina Herrmann v Christina Rosca | 6-1,6-2 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/26 10:40 | Mika D Fruchtman v Sina Herrmann | 1-6,6-4,10-8 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/25 12:00 | Sowjanya Bavisetti v Sina Herrmann | 1-6,1-6 |
| ITF W25 Tarvisio | 2021/07/13 11:50 | Sina Herrmann v Cristina Dinu | 2-6,0-6 |
| WTA Hamburg | 2021/07/05 10:55 | Sina Herrmann v Isabella Shinikova | 4-6,2-6 |
| ITF W25 Wroclaw | 2021/06/29 11:15 | Sina Herrmann v Valeriya Strakhova | 1-6,1-6 |
| ITF W25 Bydgoszcz | 2021/08/02 13:15 | Yuliana Lizarazo v Aleksandra Julia Jelen | 6-2,6-3 |
| ITF W60 Grodzisk Mazowiecki | 2021/07/25 08:00 | Karolina Kubanova v Aleksandra Julia Jelen | 6-2,3-6,10-4 |
| Polish National Tour - nők | 2021/07/12 12:30 | Aleksandra Julia Jelen v Julia Oczachowska | 6-4,0-6,3-6 |
| Polish National Tour - nők | 2020/08/22 12:05 | Aleksandra Julia Jelen v Weronika Falkowska | 5-7,1-6 |
| Polish National Tour - nők | 2020/08/15 14:35 | Aleksandra Julia Jelen v Anastasiya Shoshyna | 5-7,0-6 |
| Polish National Tour - nők | 2020/06/22 11:50 | Aleksandra Julia Jelen v Anastasiya Shoshyna | 0-6,2-6 |
| Polish National Tour - nők | 2020/06/17 10:00 | Aleksandra Julia Jelen v Witoria Rutkowska | 2-6,1-6 |
| ITF W15 Oslo | 2019/10/23 07:00 | Verena Meliss v Aleksandra Julia Jelen | 6-1,6-4 |