Stadium: Court 8 Round: 25 Ground: Clay
| ITF M15 Oldenzaal | 2021/08/19 09:00 | Christoph Negritu v Damien Wenger | 6-3,1-6,2-6 |
| ITF M15 Oldenzaal | 2021/08/18 08:00 | Christoph Negritu v Marc Dijkhuizen | 6-1,6-4 |
| ITF M25 Frankfurt am Main | 2021/08/10 10:35 | Christoph Negritu v Tim Handel | 4-6,6-2,6-10 |
| ITF M25 Frankfurt am Main | 2021/08/09 12:45 | Christoph Negritu v Sven Corbinais | 6-1,6-1 |
| ITF M25 Marburg | 2021/07/06 12:30 | Christoph Negritu v Maik Steiner | 7-6,5-7,8-10 |
| ITF M25 Marburg | 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 M25 Lesa | 2021/08/26 13:50 | Federico Arnaboldi v Riccardo Balzerani | 6-3,7-5 |
| ITF M25 Lesa | 2021/08/25 19:00 | Marcello Serafini v Riccardo Balzerani | 4-6,3-6 |
| ITF M15 Pescara | 2021/08/21 15:00 | Arthur Reymond v Riccardo Balzerani | 7-6,1-6,6-2 |
| ITF M15 Pescara | 2021/08/20 10:00 | Tomas Lipovsek Puches v Riccardo Balzerani | 6-4,2-6,3-6 |
| ITF M15 Pescara | 2021/08/19 11:20 | Alex Barrena v Riccardo Balzerani | 4-6,6-4,2-6 |
| ITF M15 Pescara | 2021/08/18 12:10 | Antonio Massara v Riccardo Balzerani | 4-6,3-6 |
| ITF M25 Bolzano | 2021/08/04 08:35 | Riccardo Balzerani v Alexander Weis | 3-6,3-6 |
| ITF M25 Bolzano | 2021/08/03 12:15 | Riccardo Balzerani v Dominique Graf | 6-3,6-4 |