Stadium: Court 11 Round: 44 Ground: Clay
| ITF Women Castellon | 2020/11/01 10:30 | Zehnder, Maria Jose v Tishchenko, Iana | 4-6,6-4,10-5 |
| ITF W25 Cairo | 2020/03/09 10:00 | Gergana Topalova v Zehnder, Maria Jose | 6-1,6-1 |
| ITF W25 Cairo | 2020/03/08 08:00 | Zehnder, Maria Jose v Imbo Nloga, Janet | 6-1,6-0 |
| ITF W15 Cairo | 2020/03/02 12:00 | Jerricka Boone v Zehnder, Maria Jose | 3-6,1-6 |
| ITF W15 Cairo | 2020/03/02 10:00 | Zehnder, Maria Jose v Mokhtar, Nathalie | 6-3,6-1 |
| ITF W15 Cairo | 2020/03/01 08:00 | Zehnder, Maria Jose v Fawzy, Caroline | 6-3,6-2 |
| ITF Women Charleston | 2016/09/25 17:30 | Zehnder, Maria Jose v Noi, Yukako | 2-6,2-6 |
| ITF Women Castellon | 2020/11/02 11:30 | Cazeaux, Amandine v Custic, Marta | 4-6,1-6 |
| ITF Women Castellon | 2020/11/01 13:00 | Lopez Alcaraz, Esther v Custic, Marta | 2-6,2-6 |
| ITF W15 Platja D'Aro | 2020/10/31 09:25 | Carreras, Amanda v Custic, Marta | 7-5,5-7,7-6 |
| ITF W15 Platja D'Aro | 2020/10/30 09:00 | Jessica Bouzas Maneiro v Custic, Marta | 7-5,4-6,2-6 |
| ITF W15 Platja D'Aro | 2020/10/29 09:00 | Custic, Marta v Marine Partaud | 4-6,6-3,6-0 |
| ITF W15 Platja D'Aro | 2020/10/28 10:15 | Oksana Selekhmeteva v Custic, Marta | 3-6,1-6 |
| ITF W25 Marbella | 2020/09/02 10:20 | Custic, Marta v Yvonne Cavalle-Reimers | 1-6,6-3,6-7 |
| Spanish Summer League Women | 2020/07/30 17:00 | Custic, Marta v Harvison, Isabella | 4-6,6-2,6-3 |