| ITF Women Den Haag Qual | 2018/07/02 10:00 | Dewi Dijkman v Perla Nieuwboer | 1-6,2-6 |
| ITF Women Den Haag Qual | 2018/07/01 10:30 | Dewi Dijkman v Ana J C Roeper | 6-2,6-2 |
| ITF Women Den Haag Qual | 2018/06/30 09:30 | Madison Bourguignon v Dewi Dijkman | 5-7,2-6 |
| ITF Women Alkmaar | 2018/06/24 09:00 | Dewi Dijkman v Lexie Stevens | 0-6,0-6 |
| ITF Women Alkmaar | 2018/06/23 08:00 | Dewi Dijkman v Juliette Colard | 6-3,1-6,7-5 |
| ITF Women Kaltenkirchen | 2018/06/17 08:30 | Dewi Dijkman v Juliette Colard | 5-7,6-4,4-6 |
| WTA Hertogenbosch Qual | 2018/06/09 09:20 | Valentini Grammatikopoulou v Dewi Dijkman | 6-3,6-1 |
| ITF Women Cairo | 2017/12/03 08:30 | Dewi Dijkman v Anastasiya Klymenko | 2-6,3-6 |