Stadium: Court A Round: 44
| ITF Women Knokke | 2018/07/07 12:30 | Casteleyn, Emily v Anger, Jenifer | 6-2,6-2 |
| ITF Women Den Haag Qual | 2018/07/02 12:45 | Casteleyn, Emily v Stevens, Lexie | 2-6,2-6 |
| ITF Women Den Haag Qual | 2018/07/01 10:30 | Alice Gillan v Casteleyn, Emily | 6-2,0-6,6-7 |
| ITF Women Den Haag Qual | 2018/06/30 09:30 | Mader, Corina v Casteleyn, Emily | 6-4,2-6,0-6 |
| ITF Women Alkmaar | 2018/06/23 08:00 | Casteleyn, Emily v Mujan, Gabriella | 4-6,3-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/06/06 07:30 | Casteleyn, Emily v Tatarus, Gabriela Nicole | 6-3,1-6,3-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/06/04 07:30 | Casteleyn, Emily v Wira, Klaudia | 7-6,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/06/03 07:30 | Casteleyn, Emily v Peruhova, Lyuboslava | 6-0,6-4 |
| ITF Women Knokke | 2018/07/07 12:30 | Defossez, Anais v Aiche, Lea | 6-1,6-0 |
| ITF Women Knokke | 2018/07/07 08:00 | Marie Villet v Defossez, Anais | 4-6,3-6 |
| ITF Women Hammamet | 2018/05/01 09:00 | Stamat, Vitalia v Defossez, Anais | 7-5,6-1 |
| ITF Women Hammamet | 2018/04/22 09:00 | Sireix, Camille v Defossez, Anais | 6-4,6-4 |
| ITF Women Hammamet | 2018/04/21 12:00 | Defossez, Anais v Dury, Mathilde | 6-4,6-1 |
| ITF Women Hammamet | 2018/04/15 09:00 | Suresh, Anjana v Defossez, Anais | 6-2,4-6,7-5 |
| ITF Women Heraklion | 2017/11/11 08:30 | Wacker, Jennifer v Defossez, Anais | 6-0,7-5 |
| ITF Women Heraklion | 2017/11/05 07:00 | Aneta Laboutkova v Defossez, Anais | 6-1,6-2 |