Stadium: Centre Court Darmstadt Round: 26
| ITF Women Hammamet | 2017/03/10 08:30 | Isabella Shinikova v Gerlach, Katharina | 7-5,7-6 |
| ITF Women Darmstadt | 2018/07/18 13:30 | Isabella Shinikova v Matvienko, Lisa | 6-4,6-4 |
| ITF Women Torino | 2018/07/10 11:30 | Haas, Barbara v Isabella Shinikova | 6-2,6-4 |
| ITF Women Aschaffenburg | 2018/07/04 11:00 | Isabella Shinikova v Anna Gabric | 6-7,5-7 |
| ITF Women Bastad | 2018/07/01 09:30 | Isabella Shinikova v Allie Kiick | 2-6,1-6 |
| ITF Women Bastad | 2018/06/30 09:30 | Ulrikke Eikeri v Isabella Shinikova | 1-6,4-6 |
| ITF Women Bastad | 2018/06/29 08:00 | Kaja Juvan v Isabella Shinikova | 1-6,6-3,3-6 |
| ITF Women Bastad | 2018/06/28 10:30 | Koelzer, Romy v Isabella Shinikova | 6-4,3-6,1-6 |
| ITF Women Bastad | 2018/06/27 10:15 | Bukta, Agnes v Isabella Shinikova | 0-6,1-6 |
| ITF Women Darmstadt | 2018/07/18 13:00 | Schech, Ruxandra v Gerlach, Katharina | 1-6,3-6 |
| ITF Women Versmold | 2018/07/11 15:00 | Gerlach, Katharina v Cagla Buyukakcay | 6-2,4-6,5-7 |
| ITF Women Aschaffenburg | 2018/07/04 13:00 | Gerlach, Katharina v Halbauer, Elizabeth | 4-6,6-1,1-6 |
| ITF Women Stuttgart | 2018/06/27 11:00 | Panova, Alexandra v Gerlach, Katharina | 7-5,6-4 |
| ITF Women Kaltenkirchen | 2018/06/20 09:00 | Gerlach, Katharina v Wargnier, Lucie | 2-6,6-0,4-6 |
| ITF Women Essen | 2018/06/12 10:30 | Ekaterine Gorgodze v Gerlach, Katharina | 6-0,1-6,6-1 |
| WTA Nurnberg Qual | 2018/05/19 13:05 | Gerlach, Katharina v Zaja, Anna | 6-7,3-6 |
| Balatonboglar, Simples W-WITF-HUN-08A | 2018/05/02 10:55 | Kaja Juvan v Gerlach, Katharina | 6-2,6-1 |