Stadium: Central Round: 54 Ground: Hardcourt indoor
| ITF W25 Cherbourg | 2020/10/11 17:40 | Gerlach, Katharina v Selena Janicijevic | 3-6,0-6 |
| ITF W25 Grado | 2020/09/16 16:15 | Sina Herrmann v Gerlach, Katharina | 6-3,6-4 |
| ITF W25 Tarvisio | 2020/09/10 14:05 | Francesca Jones v Gerlach, Katharina | 6-0,7-5 |
| WTA Prague | 2020/08/31 13:00 | Bibiane Schoofs v Gerlach, Katharina | 6-2,6-0 |
| WTA Prague | 2020/08/29 10:35 | Gerlach, Katharina v Satralova, Denisa | 6-2,6-1 |
| DTB German Pro Series Women | 2020/07/18 12:30 | Gerlach, Katharina v Nastasja Schunk | 1-6,4-6 |
| DTB German Pro Series Women | 2020/07/17 12:30 | Laura Siegemund v Gerlach, Katharina | 7-5,6-0 |
| DTB German Pro Series Women | 2020/07/16 15:40 | Gerlach, Katharina v Jule Niemeier | 6-2,6-1 |
| ITF - W15 Monastir | 2020/10/01 09:50 | Le Bihan, Kelia v Astakhova, Darya | 2-6,4-6 |
| ITF - W15 Monastir | 2020/09/29 11:35 | Le Bihan, Kelia v Louise Kwong | 6-3,6-4 |
| ITF - W15 Monastir | 2020/09/23 13:00 | Anna Kubareva v Le Bihan, Kelia | 1-6,6-3,6-1 |
| ITF W15 Santarem | 2020/09/16 10:00 | Le Bihan, Kelia v Jacqueline Cabaj Awad | 4-6,2-6 |
| ITF W15 Santarem | 2020/09/15 10:00 | Le Bihan, Kelia v Koklina, Elizaveta | 6-4,6-0 |
| UTR Pro Tennis Series France Women | 2020/09/05 13:00 | Le Bihan, Kelia v Ekaterina Makarova | 7-5,6-4 |
| UTR Pro Tennis Series France Women | 2020/09/05 07:00 | Le Bihan, Kelia v O'sandra Oliynykova | 6-3,7-6 |
| UTR Pro Tennis Series France Women | 2020/09/05 07:00 | Le Bihan, Kelia v Oleksandra Oliynykova | 6-3,7-6 |