Stadium: Court 9 Round: 26
| ITF Women Den Haag | 2018/07/03 08:00 | Yukina Saigo v Steur, Julyette Maria Josephine | 2-6,4-6 |
| ITF Women Alkmaar | 2018/06/29 09:00 | Hendler, Tamaryn v Steur, Julyette Maria Josephine | 6-2,7-5 |
| ITF Women Alkmaar | 2018/06/28 10:40 | Wensveen, Sem v Steur, Julyette Maria Josephine | 3-6,3-6 |
| ITF Women Alkmaar | 2018/06/27 09:00 | Madison Bourguignon v Steur, Julyette Maria Josephine | 2-6,3-6 |
| ITF Women Kaltenkirchen | 2018/06/21 08:30 | Anna Gabric v Steur, Julyette Maria Josephine | 6-2,6-1 |
| ITF Women Kaltenkirchen | 2018/06/19 09:00 | Arina Gabriela Vasilescu v Steur, Julyette Maria Josephine | 6-3,1-6,5-7 |
| ITF Women Hammamet | 2018/05/25 09:00 | Steur, Julyette Maria Josephine v Tayisiya Morderger | 3-6,6-7 |
| ITF Women Hammamet | 2018/05/24 11:20 | Steur, Julyette Maria Josephine v Brouleau, Lou | 7-6,6-7,6-0 |
| ITF Women Den Haag | 2018/07/04 09:55 | Szupper, Marlies v Horackova, Gabriela | 7-6,6-2 |
| ITF Women Den Haag Qual | 2018/07/02 08:00 | Szupper, Marlies v Haverlag, Isabelle | 6-3,6-3 |
| ITF Women Den Haag Qual | 2018/07/01 08:00 | Szupper, Marlies v Rubbrecht, Antje | 6-4,6-1 |
| ITF Women Den Haag Qual | 2018/06/30 09:30 | Szupper, Marlies v Melgers, Annick | 6-3,6-4 |
| ITF Women Alkmaar | 2018/06/29 09:00 | Szupper, Marlies v Yudanov, Marina | 0-6,0-6 |
| ITF Women Alkmaar | 2018/06/28 09:00 | Cameron, Dainah v Szupper, Marlies | 0-6,0-6 |
| ITF Women Alkmaar | 2018/06/26 13:25 | Noa Liauw A Fong v Szupper, Marlies | 3-6,3-6 |
| Cairo, Singles W-WITF-EGY-02A | 2018/05/04 10:30 | Reddy, Snehadevi S v Szupper, Marlies | 6-1,6-0 |