Stadium: Court 9 Round: 62
| ITF Women Den Haag Qual | 2018/07/01 08:00 | Marlies Szupper v Antje Rubbrecht | 6-4,6-1 |
| ITF Women Den Haag Qual | 2018/06/30 09:30 | Marlies Szupper v Άννικ Μέλγκερς | 6-3,6-4 |
| ITF Women Alkmaar | 2018/06/29 09:00 | Marlies Szupper v Marina Yudanov | 0-6,0-6 |
| ITF Women Alkmaar | 2018/06/28 09:00 | Dainah Cameron v Marlies Szupper | 0-6,0-6 |
| ITF Women Alkmaar | 2018/06/26 13:25 | Νόα Λιάου Α Φονγκ v Marlies Szupper | 3-6,3-6 |
| ITF Women Cairo | 2018/05/04 10:30 | Snehadevi S Reddy v Marlies Szupper | 6-1,6-0 |
| ITF Women Cairo | 2018/05/01 07:30 | Marlies Szupper v Shelby Talcott | 2-6,6-4,6-2 |
| ITF Women Cairo | 2018/04/25 14:10 | Ola Abou Zekry v Marlies Szupper | 6-1,2-6,6-2 |
| ITF Women Den Haag Qual | 2018/07/01 08:00 | Ιζαμπελ Χαβερλαγκ v Brindtha Ramasamy | 6-3,6-4 |