Stadium: Court 6 Round: 25 Ground: Clay
| ITF Women Darmstadt | 2018/07/19 10:00 | Koelzer, Romy v Kennel, Karin | 6-2,6-2 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/10/01 12:00 | Koelzer, Romy v Wushuang Zheng | 4-6,6-2,6-1 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/30 13:30 | Koelzer, Romy v Pereira, Teliana | 7-5,6-4 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/23 16:30 | Koelzer, Romy v Alice Rame | 3-6,5-7 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/16 17:15 | Koelzer, Romy v Matteucci, Alice | 2-6,7-5,4-6 |
| ITF Women Braunschweig | 2018/08/22 09:00 | Jule Niemeier v Koelzer, Romy | 6-3,7-5 |
| ITF Women Braunschweig | 2018/08/20 12:00 | Koelzer, Romy v Lister, Cornelia | 6-7,7-6,6-2 |
| ITF Women Braunschweig | 2018/08/19 08:00 | Koelzer, Romy v Julia Stamatova | 7-6,6-2 |
| ITF Women Leipzig | 2018/08/15 09:00 | Jorovic, Ivana v Koelzer, Romy | 7-6,6-4 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/10/01 12:00 | Ma, Shuyue v Kennel, Karin | 3-6,6-3,3-6 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/30 13:00 | Kennel, Karin v Kordolaimi, Eleni | 6-2,6-2 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/24 15:30 | Kennel, Karin v Kordolaimi, Eleni | 5-7,6-2,3-6 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/23 15:40 | Ma, Shuyue v Kennel, Karin | 1-6,6-4,4-6 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/17 15:40 | Jule Niemeier v Kennel, Karin | 6-2,6-4 |
| Santa Margherita Di Pula, Simples W-WITF-ITA-27A | 2018/09/16 17:15 | Kiernan, Emma Erin v Kennel, Karin | 1-6,0-6 |
| ITF Women Badenweiler | 2018/09/07 09:00 | Kennel, Karin v Sibille, Constance | 1-6,1-6 |
| ITF Women Badenweiler | 2018/09/06 09:00 | Kennel, Karin v Milenkovic, Kristina | 6-3,6-3 |