Stadium: Court 3 Round: 44
| ITF Women Hechingen Qual | 2018/08/06 10:00 | Jule Niemeier v Katarzyna Piter | 6-3,6-3 |
| ITF Women Hechingen Qual | 2018/08/05 09:00 | Ksenia Palkina v Katarzyna Piter | 0-6,1-6 |
| ITF Women Horb | 2018/07/29 13:00 | Katarzyna Piter v Katharina Gerlach | 6-4,3-6,6-7 |
| ITF Women Horb | 2018/07/28 13:30 | Jaqueline Adina Cristian v Katarzyna Piter | 4-6,2-6 |
| ITF Women Horb | 2018/07/27 15:00 | Katharina Hobgarski v Katarzyna Piter | 0-6,6-4,4-6 |
| ITF Women Horb | 2018/07/26 15:30 | Carmen Schultheiss v Katarzyna Piter | 1-6,6-7 |
| ITF Women Horb | 2018/07/25 10:00 | Katarzyna Piter v Valeriya Strakhova | 7-5,6-3 |
| WTA Gstaad Qual | 2018/07/14 12:45 | Martina Trevisan v Katarzyna Piter | 4-6,7-6,6-3 |
| ITF Women Leipzig | 2018/08/12 09:00 | Chantal Sauvant v Stephanie Wagner | 1-6,0-6 |
| ITF Women Bad Saulgau | 2018/08/02 11:20 | Stephanie Wagner v Olga Ianchuk | 7-5,0-6,0-6 |
| ITF Women Bad Saulgau | 2018/08/01 08:00 | Stephanie Wagner v Michaela Honcova | 6-3,4-6,6-3 |
| ITF Women Bad Saulgau Qual | 2018/07/31 10:10 | Stephanie Wagner v Johana Markova | 6-2,5-7,6-2 |
| ITF Women Bad Saulgau Qual | 2018/07/30 14:50 | Anna Gabric v Stephanie Wagner | 0-6,3-6 |
| ITF Women Wiesbaden Qual | 2018/04/24 08:00 | Helene Scholsen v Stephanie Wagner | 4-6,7-5,2-6 |
| ITF Women Wiesbaden Qual | 2018/04/23 10:30 | Hannah Nagel v Stephanie Wagner | 0-6,2-6 |
| ITF Women Stuttgart | 2018/01/26 11:00 | Stephanie Wagner v Ylena In-Albon | 6-3,6-2 |