Stadium: Court 9 Round: 54 Ground: Hardcourt indoor
| ITF W80 Poitiers | 2021/10/24 18:35 | Sarah Beth Grey v Marine Szostak | 6-4,7-6 |
| ITF W15 Dijon | 2021/09/14 07:30 | Marine Szostak v Valentina Ryser | 4-6,7-5,3-6 |
| ITF W15 Dijon | 2021/09/13 10:00 | Marine Szostak v Veronika Podrez | 6-3,6-4 |
| ITF W25 Saint Palais Sur Mer | 2021/09/06 11:20 | Emeline Dartron v Marine Szostak | 6-3,3-6,15-13 |
| ITF W25 Saint Palais Sur Mer | 2021/09/05 13:00 | Luisina Giovannini v Marine Szostak | 2-6,1-6 |
| ITF W15 Aix-en-Provence | 2021/09/02 13:55 | Marine Szostak v Margaux Rouvroy | 3-6,2-6 |
| ITF W15 Aix-en-Provence | 2021/09/01 11:55 | Marine Szostak v Cosima T Calinescu | 6-2,6-3 |
| ITF W15 Aix-en-Provence | 2021/08/31 07:55 | Marine Szostak v Zoe Bourbotte | 6-1,6-2 |
| ITF W15 Castellon | 2021/11/03 11:55 | Naia Mercadier v Alba Carrillo Marin | 2-6,2-6 |
| ITF W15 Castellon | 2021/11/02 10:00 | Anastasia Veselova v Naia Mercadier | 2-6,3-6 |
| ITF W15 Castellon | 2021/11/01 11:00 | Naia Mercadier v Emilie Elde | 7-5,6-1 |
| ITF W15 Melilla | 2021/09/16 10:25 | Naia Mercadier v Chantal Sauvant | 1-6,3-6 |
| ITF W15 Melilla | 2021/09/13 14:30 | Soumeya Anane v Naia Mercadier | 6-7,4-6 |
| ITF W60 Biarritz | 2021/07/12 11:50 | Naia Mercadier v Sarah Beth Grey | 0-6,4-6 |
| ITF W25 Madrid | 2021/06/06 10:45 | Naia Mercadier v Kamilla Bartone | 3-6,1-6 |
| ITF W80 Biarritz | 2019/07/15 09:40 | Irina Ramialison v Naia Mercadier | 6-1,6-0 |