Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/02/23 08:00 | Constantin Schmitz v Jose Fco. Vidal Azorin | 6-4,3-6,4-6 |
| ITF M15 Alkmaar | 2020/08/25 14:30 | Constantin Schmitz v Benjamin Hassan | 4-6,6-3,3-6 |
| Tennis Point Exhibition Series | 2020/08/01 09:30 | Constantin Schmitz v Benjamin Hassan | 6-7,7-6,0-6 |
| Tennis Point Exhibition Series | 2020/07/31 08:00 | Constantin Schmitz v Johannes Haerteis | 0-6,3-6 |
| Tennis Point Exhibition Series | 2020/07/30 08:00 | Constantin Schmitz v Hazem Naw | 4-6,7-6,2-6 |
| Tennis Point Exhibition Series | 2020/07/29 09:45 | Constantin Schmitz v Daniel Vishnick | 6-1,6-2 |
| Tennis Point Exhibition Series | 2020/07/28 08:00 | Constantin Schmitz v Luca Gelhardt | 6-3,6-1 |
| Tennis Point Exhibition Series | 2020/07/25 09:30 | Constantin Schmitz v Luca Gelhardt | 6-3,6-2 |
| ITF M15 Monastir | 2021/02/24 08:00 | Colin Sinclair v Christoph Negritu | 6-1,7-5 |
| German Championship | 2020/12/10 10:30 | Jakob Schnaitter v Christoph Negritu | 7-6,7-5 |
| German Championship | 2020/12/08 15:00 | Marvin Moeller v Christoph Negritu | 6-7,6-3,3-6 |
| ITF M15 Alkmaar | 2020/08/27 09:00 | Shintaro Mochizuki v Christoph Negritu | 6-4,7-5 |
| ITF M15 Alkmaar | 2020/08/25 14:40 | Christoph Negritu v Carlos Boluda-Purkiss | 6-3,4-6,6-4 |
| DTB German Pro Series | 2020/06/27 12:00 | Daniel Altmaier v Christoph Negritu | 6-4,7-5 |
| DTB German Pro Series | 2020/06/26 14:40 | Daniel Altmaier v Christoph Negritu | 7-6,6-1 |
| DTB German Pro Series | 2020/06/25 13:50 | Christoph Negritu v Mats Rosenkranz | 6-7,1-6 |