Stadium: Central bis Round: 44 Ground: Hardcourt outdoor
| ITF - W15 Gonesse | 2021/03/15 11:35 | Jade Suvrijn v Marine Szostak | 6-2,6-2 |
| ITF - W15 Gonesse | 2021/03/14 13:50 | Marine Szostak v Joanna Tomera | 6-4,2-6,10-7 |
| ITF - W25 Grenoble | 2021/02/09 08:25 | Pemra Ozgen v Marine Szostak | 6-4,6-4 |
| ITF - W15 Manacor | 2021/01/31 12:00 | Valentina Ryser v Marine Szostak | 4-6,6-4,10-8 |
| ITF - W15 Manacor | 2021/01/26 11:00 | Iva Primorac v Marine Szostak | 6-2,6-3 |
| ITF - W15 Manacor | 2021/01/19 09:00 | Oksana Selekhmeteva v Marine Szostak | 6-0,7-6 |
| ITF - W15 Manacor | 2021/01/18 10:00 | Karolina Novakova v Marine Szostak | 1-6,4-6 |
| ITF - W15 Manacor | 2021/01/17 11:00 | Marine Szostak v Maelys Bougrat | 7-6,6-0 |
| ITF - W15 Amiens | 2021/03/07 18:00 | Anita Bertoloni v Agostina Breval | 6-1,6-0 |