Stadium: Court 1 Round: 62 Ground: Clay
| ITF - W25 Viena | 2021/08/29 14:00 | Sapfo Sakellaridi v Karolina Novakova | 7-6,6-3 |
| ITF - W25 Viena | 2021/08/29 07:30 | Sapfo Sakellaridi v Anet A Koskel | 7-5,6-2 |
| ITF - W15 Bad Waltersdorf | 2021/08/28 09:20 | Ziva Falkner v Sapfo Sakellaridi | 6-2,6-1 |
| ITF - W15 Bad Waltersdorf | 2021/08/27 11:35 | Sapfo Sakellaridi v Elena-Teodora Cadar | 6-7,6-3,6-2 |
| ITF - W15 Bad Waltersdorf | 2021/08/26 11:15 | Sapfo Sakellaridi v Mavie Osterreicher | 6-2,6-3 |
| ITF - W15 Bad Waltersdorf | 2021/08/25 09:30 | Sapfo Sakellaridi v Nikol Palecek | 6-1,6-0 |
| ITF - W15 Warmbad-Villach | 2021/08/17 10:30 | Sapfo Sakellaridi v Fiona Ganz | 4-6,6-3,3-6 |
| ITF - W25 Radom | 2021/08/09 09:40 | Carlota Martinez Cirez v Sapfo Sakellaridi | 6-3,7-5 |
| ITF - W25 Viena | 2021/08/29 14:00 | Mila Masic v Eri Shimizu | 1-6,7-5,5-10 |
| ITF - W15 Bad Waltersdorf | 2021/08/24 11:45 | Eri Shimizu v Yeon Woo Ku | 4-6,6-2,4-6 |
| ITF - W15 Warmbad-Villach | 2021/08/19 12:10 | Eri Shimizu v Anna Turati | 2-6,5-7 |
| ITF - W15 Warmbad-Villach | 2021/08/17 12:55 | Eri Shimizu v Laetitia Pulchartova | 6-4,6-2 |
| ITF - W15 Bratislava | 2021/08/13 08:00 | Pia Lovric v Eri Shimizu | 6-4,6-2 |
| ITF - W15 Bratislava | 2021/08/12 09:25 | Eri Shimizu v Caijsa W Hennemann | 6-4,6-3 |
| ITF - W15 Bratislava | 2021/08/11 12:15 | Romana Cisovska v Eri Shimizu | 2-6,2-6 |
| ITF - W15 Frederiksberg | 2021/08/03 07:50 | Eri Shimizu v Alice Robbe | 2-6,3-6 |