Stadium: Centre Court Versmold Round: 1
| DTB German Pro Series Women | 2020/06/18 07:00 | Katharina Gerlach v Mina Hodzic | 6-3,6-4 |
| DTB German Pro Series Women | 2020/06/16 14:05 | Katharina Gerlach v Angelina Wirges | 6-4,6-1 |
| ITF W25 Orlando | 2019/11/13 14:55 | Maria Lourdes Carle v Katharina Gerlach | 4-6,6-3,7-5 |
| ITF W60 Colina | 2019/11/08 17:00 | Allie Kiick v Katharina Gerlach | 6-4,6-4 |
| ITF W60 Colina | 2019/11/07 15:00 | Carolina Alves v Katharina Gerlach | 6-7,6-4,5-7 |
| ITF W60 Colina | 2019/11/06 14:00 | Luisa Stefani v Katharina Gerlach | 1-6,2-6 |
| ITF W60 Asuncion | 2019/10/29 22:50 | Renata Zarazua v Katharina Gerlach | 6-2,6-0 |
| ITF W25 Seville | 2019/10/17 09:25 | Katharina Gerlach v Cristina Bucsa | 6-2,4-6,5-7 |
| DTB German Pro Series Women | 2020/06/16 09:25 | Julyette M J Steur v Mina Hodzic | 2-6,1-6 |
| ITF W15 Antalya | 2020/03/12 07:25 | Julyette M J Steur v Sinja Kraus | 6-4,6-1 |
| ITF W15 Antalya | 2020/03/11 07:00 | Julyette M J Steur v Ilay Yoruk | 6-0,6-2 |
| ITF W15 Antalya | 2020/02/17 07:00 | Julyette M J Steur v Jiangxue Han | 6-3,4-6,6-4 |
| ITF W15 Antalya | 2020/02/16 10:30 | Julyette M J Steur v Elina Avanesyan | 3-6,6-2,10-8 |
| ITF W15 Antalya | 2020/02/16 07:00 | Julyette M J Steur v Nina Stadler | 6-2,6-1 |
| ITF W15 Antalya | 2020/02/15 10:30 | Julyette M J Steur v Julia Stamatova | 7-5,6-1 |
| ITF W15 Antalya | 2020/02/14 12:15 | Julyette M J Steur v Deniz Paykoc | 6-0,6-0 |