Stadium: Court 13 Round: 62 Ground: Hardcourt outdoor
| ITF W25 Platja D’Aro | 2021/05/16 10:00 | Marta Custic v Melanie Stokke | 2-6,2-6 |
| ITF W60 La Bisbal | 2021/05/13 12:05 | Marina Bassols Ribera v Marta Custic | 6-3,6-4 |
| ITF W60 La Bisbal | 2021/05/12 10:10 | Marta Custic v Ysaline Bonaventure | 0-6,7-6,6-2 |
| WTA Madrid | 2021/04/27 10:20 | Danka Kovinic v Marta Custic | 6-3,6-2 |
| ITF W15 Manacor | 2021/03/10 12:00 | Marta Custic v Margot Yerolymos | 6-3,2-6,3-6 |
| ITF W25 Manacor | 2021/02/28 11:00 | Marta Custic v Oksana Selekhmeteva | 6-7,2-6 |
| ITF W15 Antalya | 2021/02/18 14:05 | Marta Custic v Cristina Dinu | 3-6,6-3,2-6 |
| ITF W15 Antalya | 2021/02/17 11:00 | Marta Custic v Diana Demidova | 6-3,6-2 |
| ITF W25 Madrid | 2021/06/07 07:15 | Alba Carrillo Marin v Lucia L Domingo | 6-4,6-3 |
| ITF W25 Madrid | 2021/06/06 08:00 | Lucia L Domingo v Laura Marti | 3-6,6-1,10-4 |
| ITF W15 Santa Margarita de Montbui | 2021/05/26 10:25 | Lucia L Domingo v Nicole Gadient | 2-6,3-6 |
| ITF W25 Platja D’Aro | 2021/05/17 08:30 | Riya Bhatia v Lucia L Domingo | 6-3,6-2 |
| ITF W15 Manacor | 2021/02/01 10:00 | Lucia L Domingo v Rachel Gailis | 3-6,6-7 |
| ITF W15 Monastir | 2020/02/07 10:40 | Lucia L Domingo v Margaux Orange | 0-6,0-6 |
| ITF W15 Monastir | 2020/02/05 11:35 | Lucia L Domingo v Katharina Hering | 6-2,6-4 |
| ITF W60 Valencia | 2019/09/23 12:50 | Daniela Seguel v Lucia L Domingo | 6-4,6-1 |