Estádio: Court 1 Round: 54 Ground: Clay
| ITF - M25 Marburgo | 2021/07/06 12:30 | Christoph Negritu v Maik Steiner | 7-6,5-7,8-10 |
| ITF - M25 Marburgo | 2021/07/05 10:35 | Christoph Negritu v Dax Donders | 7-6,7-6 |
| Challenger - Heilbronn | 2021/05/09 11:55 | Christoph Negritu v Aleksandar Vukic | 5-7,2-6 |
| ITF - M15 Monastir | 2021/04/25 08:30 | Igor Marcondes v Christoph Negritu | 2-6,2-6 |
| ITF - M15 Monastir | 2021/04/24 09:30 | Omar Giacalone v Christoph Negritu | 4-6,2-6 |
| ITF - M15 Monastir | 2021/04/22 10:35 | Christoph Negritu v Christian Langmo | 7-5,7-6 |
| ITF - M15 Monastir | 2021/04/20 11:15 | Danylo Kalenichenko v Christoph Negritu | 2-6,4-6 |
| ITF - M15 Monastir | 2021/04/14 12:05 | Christoph Negritu v Savva Polukhin | 5-7,4-6 |
| ITF - M15 Antália | 2021/04/25 07:00 | Mattia Rossi v Sven Corbinais | 6-3,6-4 |
| ITF - M15 Antália | 2021/02/22 07:00 | Sven Corbinais v Cengiz Aksu | 1-6,4-6 |
| ITF - M15 Antália | 2021/02/14 06:00 | Facundo Juarez v Sven Corbinais | 6-1,6-1 |
| ITF - M15 Antália | 2021/01/17 09:00 | Jonathan Mridha v Sven Corbinais | 6-2,6-1 |
| ITF - M15 Antália | 2021/01/10 06:00 | Benedikt Emesz v Sven Corbinais | 6-1,6-2 |
| ITF - M15 Antália | 2021/01/03 07:00 | Sven Corbinais v Drazen Petrovic | 4-6,2-6 |