Stadium: Court 8 Round: 25 Ground: Clay
| ITF W15 Cordenons | 2021/07/29 12:00 | Stefania Rubini v Romana Cisovska | 6-2,6-3 |
| ITF W15 Cordenons | 2021/07/28 12:20 | Romana Cisovska v Chiara Bordo | 6-1,6-1 |
| ITF W60 Olomouc | 2021/07/18 10:00 | Romana Cisovska v Julie Struplova | 1-6,4-6 |
| ITF W25 Tarvisio | 2021/07/12 10:00 | Romana Cisovska v Andrea A Farulla Di Palma | 6-2,1-6,3-10 |
| ITF W15 Prokuplje | 2021/06/29 15:40 | Romana Cisovska v Anna Turati | 4-6,3-6 |
| ITF W25 Klosters | 2021/06/21 12:50 | Romana Cisovska v Lena Papadakis | 1-6,3-6 |
| ITF W15 Banja Luka | 2021/06/05 12:30 | Tereza Mihalikova v Romana Cisovska | 6-1,3-6,5-7 |
| ITF W15 Banja Luka | 2021/06/04 10:40 | Anika Jaskova v Romana Cisovska | 7-5,4-6,3-6 |
| ITF W15 Frederiksberg | 2021/08/03 07:50 | Eri Shimizu v Alice Robbe | 2-6,3-6 |
| ITF W15 Vejle | 2021/07/29 14:50 | Eri Shimizu v Priska Madelyn Nugroho | 3-6,2-6 |
| ITF W15 Vejle | 2021/07/27 09:35 | Eri Shimizu v Emma Kamper Malmkjaer | 6-2,6-2 |
| ITF W15 Cairo | 2021/04/22 09:55 | Sandra Samir v Eri Shimizu | 6-2,7-5 |
| ITF W15 Cairo | 2021/04/21 12:30 | Lamis Alhussein Abdel Aziz v Eri Shimizu | 6-1,6-7,2-6 |
| ITF W15 Cairo | 2021/04/18 08:30 | Elina Avanesyan v Eri Shimizu | 6-1,6-0 |
| ITF W15 Cairo | 2021/04/17 08:30 | Anastasia Zolotareva v Eri Shimizu | 4-6,6-3,3-6 |
| ITF W15 Cairo | 2021/04/16 08:30 | Noa Liauw A Fong v Eri Shimizu | 0-6,3-6 |