Stadium: Court 4 Round: 54 Ground: Clay
| ITF Women Hammamet | 2018/02/01 08:30 | Natalia Siedliska v Cindy Burger | 0-6,1-6 |
| ITF Women Hammamet | 2018/01/30 10:45 | Natalia Siedliska v Elena Griessner | 6-2,6-1 |
| ITF Women Stuttgart | 2018/01/23 09:00 | Johana Markova v Natalia Siedliska | 6-1,6-1 |
| ITF Women Stuttgart | 2018/01/22 09:00 | Natalia Siedliska v Lou Adler | 6-2,6-7,6-4 |
| ITF Women Stellenbosch | 2017/12/08 07:30 | Chanel Simmonds v Natalia Siedliska | 6-4,6-3 |
| ITF Women Stellenbosch | 2017/12/07 09:30 | Natalia Siedliska v Julyette M J Steur | 6-0,6-4 |
| ITF Women Stellenbosch | 2017/12/06 09:30 | Petra Januskova v Natalia Siedliska | 1-6,3-6 |
| ITF Women Stellenbosch Qual | 2017/12/04 12:35 | Natalia Siedliska v Corin De Waal | 6-0,6-1 |
| ITF Women Hammamet | 2018/02/03 09:00 | Imen Abid v Adele Diana Biba | 7-5,6-1 |
| ITF Women Hammamet | 2018/01/08 08:30 | Imen Abid v Bianca Bevione | 0-6,1-6 |