Stadion: Court 1 Round: 54 Ground: Hardcourt indoor
| ITF Frauen - W15 - Antalya | 2019/04/24 07:00 | Olga Helmi v Eliessa Vanlangendonck | 5-7,1-6 |
| ITF Damen - W25 - Hamburg | 2021/10/18 11:25 | Olga Helmi v Sofia Nami Samavati | 6-4,3-6,10-2 |
| ITF Damen - W25 - Lagos | 2021/10/12 11:30 | Anna Turati v Olga Helmi | 7-5,6-2 |
| ITF Damen - W25 - Lagos | 2021/10/11 14:30 | Maria Beatriz Teixeira v Olga Helmi | 1-6,1-6 |
| ITF Frauen - W15 - Monastir | 2021/09/29 15:35 | Mia Mack v Olga Helmi | 7-6,6-4 |
| ITF Frauen - W15 - Monastir | 2021/09/26 08:30 | Olga Helmi v Clara Vlasselaer | 6-1,6-3 |
| ITF Frauen - W15 - Monastir | 2021/09/25 08:30 | Olga Helmi v Elena Milovanovic | 6-4,6-0 |
| ITF Frauen - W15 - Monastir | 2021/09/24 10:10 | Olga Helmi v Pimrada Jattavapornvanit | 6-4,4-6,6-2 |
| ITF Frauen - W15 - Monastir | 2021/09/23 09:30 | Olga Helmi v Eszter Meri | 7-5,6-2 |
| ITF Damen - W25 - Hamburg | 2021/10/18 11:25 | Annick Melgers v Eliessa Vanlangendonck | 4-6,4-6 |
| ITF Damen - W25 - Pretoria | 2021/09/29 08:40 | Eliessa Vanlangendonck v Shavit Kimchi | 6-2,4-6,6-7 |
| ITF Damen - W25 - Johannesburg | 2021/09/21 08:55 | Tina Nadine Smith v Eliessa Vanlangendonck | 6-1,6-1 |
| ITF Damen - W25 - Johannesburg | 2021/09/20 11:50 | Arili Boshoff v Eliessa Vanlangendonck | 2-6,1-6 |
| ITF Damen - W25 - Johannesburg | 2021/09/13 14:45 | Eliessa Vanlangendonck v Mika D Fruchtman | 6-1,1-6,17-15 |
| ITF Damen - W25 - Johannesburg | 2021/09/13 12:10 | Eliessa Vanlangendonck v Ofer Kivity | 6-1,6-1 |
| ITF W60 San Bartolome De Tirajana | 2021/08/16 14:10 | Claudia Hoste Ferrer v Eliessa Vanlangendonck | 6-2,6-2 |
| ITF W60 San Bartolome De Tirajana Qualifikation | 2021/08/15 16:05 | Eliessa Vanlangendonck v Ekaterina Shalimova | 6-3,0-6,10-5 |