Stadium: Court 3 Round: 27
| ITF Women Rotterdam | 2018/08/23 08:00 | Tayisiya Morderger v Noa Liauw A Fong | 6-2,6-3 |
| ITF Women Rotterdam | 2018/08/22 08:00 | Tayisiya Morderger v Maria Paulina Perez Garcia | 6-2,6-4 |
| ITF Women Oldenzaal | 2018/08/18 12:50 | Arianne Hartono v Tayisiya Morderger | 7-6,6-4 |
| ITF Women Oldenzaal | 2018/08/17 12:45 | Tayisiya Morderger v Lara Salden | 6-1,6-1 |
| ITF Women Oldenzaal | 2018/08/16 12:10 | Tayisiya Morderger v Szupper, Marlies | 6-1,6-2 |
| ITF Women Oldenzaal | 2018/08/14 14:20 | Tayisiya Morderger v Maria Paulina Perez Garcia | 6-2,6-3 |
| Koksijde, Singles W-WITF-BEL-04A | 2018/08/06 09:50 | Hogenkamp, Richel v Tayisiya Morderger | 6-2,6-4 |
| ITF Women Prague Qual | 2018/07/22 10:15 | Tayisiya Morderger v Mestach, An Sophie | 6-1,3-6,4-6 |
| ITF Women Rotterdam | 2018/08/23 11:40 | Hering, Katharina v Natalia Siedliska | 3-6,1-6 |
| ITF Women Rotterdam | 2018/08/22 10:55 | Munozova, Anette v Natalia Siedliska | 1-6,2-6 |
| ITF Women Hechingen Qual | 2018/08/05 15:30 | Natalia Siedliska v Skamlova, Chantal | 7-6,3-6,1-6 |
| ITF Women Horb Qual | 2018/07/24 12:35 | Kennel, Karin v Natalia Siedliska | 6-4,6-2 |
| ITF Women Horb Qual | 2018/07/23 13:00 | Pipa, Shaline-Doreen v Natalia Siedliska | 3-6,3-6 |
| Matchs amicaux U18 | 2018/07/10 08:00 | Natalia Siedliska v Yudanov, Marina | 3-6,6-7 |
| ITF Women Aschaffenburg Qual | 2018/07/02 13:15 | Angelica Moratelli v Natalia Siedliska | 6-4,3-6,6-3 |
| ITF Women Hammamet | 2018/06/16 09:00 | Claudia Hoste Ferrer v Natalia Siedliska | 4-6,4-6 |