Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| German Premier League Women | 2020/08/06 10:25 | Hering, Katharina v Oana Gavrila | 7-5,3-6,6-4 |
| ITF - W15 Monastir | 2021/02/25 08:00 | Francesca Curmi v Oana Gavrila | 6-1,6-3 |
| ITF - W15 Monastir | 2021/02/24 09:30 | Jocovic, Andjela v Oana Gavrila | 3-6,2-6 |
| ITF W15 Madrid | 2020/12/10 13:40 | Conny Perrin v Oana Gavrila | 6-4,6-2 |
| ITF W15 Madrid | 2020/12/08 08:45 | Oana Gavrila v Milkova, Barbora | 6-1,6-4 |
| ITF - W15 Héraklion | 2020/11/26 07:30 | Vidmanova, Darja v Oana Gavrila | 4-6,6-3,6-4 |
| ITF - W15 Héraklion | 2020/11/24 07:25 | Oana Gavrila v Sada Nahimana | 6-3,6-4 |
| ITF - W15 Héraklion | 2020/11/19 07:30 | Oana Gavrila v Michaela Laki | 1-6,7-6,4-6 |
| ITF - W15 Héraklion | 2020/11/17 08:30 | Sada Nahimana v Oana Gavrila | 4-6,0-6 |
| ITF - W15 Monastir | 2021/03/01 10:30 | Vanhoutte, Chelsea v Hering, Katharina | 6-7,5-7 |
| ITF - W15 Monastir | 2021/02/28 14:30 | Laura Mair v Hering, Katharina | 5-7,1-6 |
| ITF - W15 Manacor | 2021/01/31 11:00 | Lucia Cortez Llorca v Hering, Katharina | 6-1,6-2 |
| ITF - W15 Manacor | 2021/01/24 12:00 | Lois Boisson v Hering, Katharina | 6-7,6-2,10-4 |
| German Championship Women | 2020/12/10 09:00 | Hering, Katharina v Jule Niemeier | 0-6,1-6 |
| German Championship Women | 2020/12/08 12:30 | Hering, Katharina v Putz, Laura Isabel | 7-6,6-0 |
| German Premier League Women | 2020/08/21 11:40 | Hering, Katharina v Silvia Ambrosio | 6-4,1-6,6-1 |
| German Premier League Women | 2020/08/20 07:50 | Hering, Katharina v Koelzer, Romy | 6-3,7-5 |