Stadium: Court 1 Round: 54
| 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 |
| ITF Women Leipzig | 2018/08/13 13:00 | Koelzer, Romy v Caroline Werner | 6-4,6-1 |
| ITF Women Leipzig | 2018/08/13 10:30 | Koelzer, Romy v Levashova, Evgeniya | 6-4,1-6,6-4 |
| ITF Women Warsaw | 2018/08/06 14:00 | Koelzer, Romy v Maja Chwalinska | 0-6,0-6 |
| ITF Women Horb | 2018/07/25 14:00 | Cristian, Jaqueline Adina v Koelzer, Romy | 3-6,7-5,7-5 |
| ITF Women Horb Qual | 2018/07/24 12:45 | Koelzer, Romy v Emily Seibold | 7-5,6-3 |
| ITF Women Horb Qual | 2018/07/23 15:00 | Koelzer, Romy v Alice Violet | 6-1,6-2 |
| ITF Women Braunschweig | 2018/08/19 08:00 | Lara Schmidt v Lister, Cornelia | 0-6,3-6 |
| Prague, Singles W-WITF-CZE-06A | 2018/07/25 11:20 | Nina Stojanovic v Lister, Cornelia | 7-5,6-3 |
| ITF Women Prague Qual | 2018/07/24 08:00 | Lister, Cornelia v Detiuc, Anastasia | 6-2,6-1 |
| ITF Women Prague Qual | 2018/07/23 12:30 | Lister, Cornelia v Markova, Johana | 6-3,6-2 |
| ITF Women Prague Qual | 2018/07/22 11:50 | Lister, Cornelia v Milenkovic, Kristina | 7-6,6-4 |
| WTA Bucharest Qual | 2018/07/14 09:00 | Lister, Cornelia v Cristian, Jaqueline Adina | 3-6,4-6 |
| ITF Women Budapest Qual | 2018/07/08 11:55 | Lister, Cornelia v Panova, Alexandra | 3-6,6-3,2-6 |
| ITF Women Budapest Qual | 2018/07/07 13:25 | Lister, Cornelia v Kajuru, Ange Oby | 6-2,6-1 |