Stadium: Court 6 Round: 26 Ground: Clay
| ITF Women Hammamet | 2018/04/05 09:00 | Natalia Siedliska v Mirjam Bjorklund | 5-7,2-6 |
| ITF Women Hammamet | 2018/04/03 09:00 | Natalia Siedliska v Vera Markovic | 6-0,6-0 |
| ITF Women Hammamet | 2018/03/29 11:15 | Natalia Siedliska v Seone Mendez | 3-6,4-6 |
| ITF Women Hammamet | 2018/03/28 14:35 | Natalia Siedliska v Marie Temin | 4-6,6-1,6-4 |
| ITF Women Heraklion | 2018/03/16 09:00 | Natalia Siedliska v Anna Bondar | 6-3,6-4 |
| ITF Women Heraklion | 2018/03/15 10:00 | Josephine Boualem v Natalia Siedliska | 4-6,4-6 |
| ITF Women Heraklion | 2018/03/14 10:50 | Natalia Siedliska v Federica Prati | 7-5,6-3 |
| ITF Women Altenkirchen | 2018/02/20 18:00 | Natalia Siedliska v Urszula Radwanska | 6-2,2-6,1-6 |
| ITF Women Manta | 2017/11/27 15:00 | Maria Paulina Perez Garcia v Sara Castellano | 2-6,7-6,6-2 |
| ITF Women Manta | 2017/11/25 16:00 | Sara Castellano v Juliana Jose Parra Gomez | 6-2,6-0 |