Stadium: Court 2 Round: 44 Ground: Clay
| ITF W25 Marbella | 2020/08/30 13:00 | Nunez, Isabella v Marthiens, Karen | 3-6,0-6 |
| ITF W80 Poitiers | 2019/10/21 12:50 | Yerolymos, Margot v Marthiens, Karen | 6-2,6-1 |
| Andrezieux-Boutheon, Singles W-ITF-FRA-25A | 2019/09/30 08:00 | Marthiens, Karen v Nsimba, L. N. | 2-6,4-6 |
| Clermont-Ferrand, Singles W-ITF-FRA-24A | 2019/09/23 09:15 | Maelys Bougrat v Marthiens, Karen | 0-6,6-2,10-8 |
| Vitoria-Gasteiz, Singles W-ITF-ESP-14A | 2019/07/25 10:10 | Cristina Bucsa v Marthiens, Karen | 6-2,6-0 |
| Vitoria-Gasteiz, Singles W-ITF-ESP-14A | 2019/07/24 14:30 | Julieta Lara Estable v Marthiens, Karen | 3-6,7-6,1-6 |
| Vitoria-Gasteiz, Singles W-ITF-ESP-14A | 2019/07/23 08:10 | Pitak, Katarzyna v Marthiens, Karen | 2-6,3-6 |
| Biarritz, Singles W-ITF-FRA-11A | 2019/07/15 09:40 | Diane Parry v Marthiens, Karen | 6-1,6-2 |
| ITF W15 Palmanova | 2020/02/09 09:00 | Anna Siskova v Alba Rey Garcia | 6-3,6-1 |
| ITF W15 Palmanova | 2020/02/08 09:00 | Lucia Cortez Llorca v Alba Rey Garcia | 4-6,6-2,3-6 |
| ITF W15 Palmanova | 2020/02/07 10:45 | Alba Rey Garcia v Krasnova, Daria | 6-2,6-1 |
| ITF W15 Palmanova | 2020/02/06 10:55 | Alba Rey Garcia v Carlota Martinez Cirez | 6-3,6-4 |
| ITF W15 Palmanova | 2020/02/04 10:55 | Lindh Gallagher, Emilie v Alba Rey Garcia | 4-6,6-3,2-6 |
| ITF - W15 Antalya | 2020/01/29 06:00 | Sapfo Sakellaridi v Alba Rey Garcia | 6-3,6-2 |
| ITF - W15 Antalya | 2020/01/27 07:00 | Gvozdenovic, Sara v Alba Rey Garcia | 2-6,4-6 |
| ITF - W15 Antalya | 2020/01/26 07:00 | Gumussoy, Begum Elif v Alba Rey Garcia | 0-6,0-6 |