Stadium: Court 1 Round: 26 Ground: Clay
| ITF W25 Lisbon | 2021/07/06 08:30 | Carole Monnet v Yvonne Cavalle-Reimers | 0-6,0-6 |
| ITF W25 Palma del Rio | 2021/07/01 17:30 | Yvonne Cavalle-Reimers v Eri Hozumi | 3-6,3-6 |
| ITF W25 Palma del Rio | 2021/06/29 17:00 | Alba Carrillo Marin v Yvonne Cavalle-Reimers | 6-7,3-6 |
| ITF W25 Madrid | 2021/06/17 14:30 | Yvonne Cavalle-Reimers v Jessica Bouzas Maneiro | 7-5,6-7,4-6 |
| ITF W25 Madrid | 2021/06/15 08:50 | Carmen Gallardo Guevara v Yvonne Cavalle-Reimers | 2-6,6-1,1-6 |
| ITF W25 Madrid | 2021/06/10 10:35 | Yvonne Cavalle-Reimers v Elitsa Kostova | 6-3,2-6,5-7 |
| ITF W25 Madrid | 2021/06/09 10:35 | Georgia Andreea Craciun v Yvonne Cavalle-Reimers | 1-6,6-3,3-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/06/04 08:00 | Yvonne Cavalle-Reimers v Nadja Bay | 6-2,5-3 |
| ITF W25 Lisbon | 2021/07/06 08:30 | Olga Helmi v Na-Lae Han | 6-4,7-6 |
| ITF W25 Lisbon | 2021/07/05 08:30 | Olga Helmi v Ines Oliveira | 6-1,6-1 |
| ITF W25 Lisbon | 2021/07/04 08:30 | Olga Helmi v Sashi Kempster | 6-0,6-0 |
| ITF W25 Porto | 2021/06/25 09:30 | Arianne Hartono v Olga Helmi | 6-0,4-6,6-2 |
| ITF W25 Porto | 2021/06/24 12:35 | Olga Helmi v Yuriko Lily Miyazaki | 6-4,6-3 |
| ITF W25 Porto | 2021/06/23 09:30 | Olga Helmi v Risa Ushijima | 6-0,6-1 |
| ITF W25 Porto | 2021/06/22 10:25 | Melanie Stokke v Olga Helmi | 3-6,1-6 |
| ITF W25 Porto | 2021/06/21 18:00 | Olga Parres Azcoitia v Olga Helmi | 0-6,5-7 |