Stadium: Court 3 Round: 54 Ground: Hardcourt outdoor
| ITF Women Badenweiler | 2018/09/05 09:00 | Kennel, Karin v Dijkman, Dewi | 6-4,7-5 |
| ITF Women Badenweiler | 2018/09/03 09:00 | Dijkman, Dewi v Schultheiss, Carmen | 2-6,2-6 |
| ITF Women Haren | 2018/08/28 08:00 | Dijkman, Dewi v Natalia Siedliska | 0-6,2-6 |
| ITF Women Rotterdam | 2018/08/19 07:00 | Hering, Katharina v Dijkman, Dewi | 6-1,6-2 |
| ITF Women Oldenzaal | 2018/08/13 07:30 | Arabella Koller v Dijkman, Dewi | 6-4,6-3 |
| ITF Women Oldenzaal | 2018/08/12 09:30 | Casteleyn, Emily v Dijkman, Dewi | 6-4,5-7,5-7 |
| ITF Women Don Benito | 2018/07/15 14:30 | Dijkman, Dewi v Perez-Somarriba, Estela | 0-6,3-6 |
| ITF Women Knokke | 2018/07/09 08:00 | Dijkman, Dewi v Carla Touly | 3-6,3-6 |