Stadium: Court 1 Round: 25 Ground: Clay
| 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 | Ribeiro Marcondes, Igor v Christoph Negritu | 2-6,2-6 |
| ITF - M15 Monastir | 2021/04/24 09:30 | Giacalone, Omar 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 Oldenzaal | 2021/08/16 10:00 | Schuetze, Caspar v Dijkhuizen, Marc | 6-7,4-6 |
| ITF M15 Alkmaar | 2020/08/25 16:15 | Arthur Cazaux v Dijkhuizen, Marc | 6-4,6-1 |
| ITF - M15 Antalya | 2019/12/13 06:30 | Alejo Lorenzo Lingua Lavallen v Dijkhuizen, Marc | 7-6,6-2 |
| ITF - M15 Antalya | 2019/12/10 10:00 | Suntic, Sabit v Dijkhuizen, Marc | 2-6,4-6 |
| Antalya, Qualifications Simples M-ITF-TUR-33A | 2019/12/09 09:30 | Gusev, Daniil v Dijkhuizen, Marc | 3-6,5-7 |
| Antalya, Qualifications Simples M-ITF-TUR-33A | 2019/12/08 09:30 | Stefanos Sakellaridis v Dijkhuizen, Marc | 3-6,2-6 |
| ITF - M15 Antalya | 2019/12/05 07:00 | Dijkhuizen, Marc v Mate Valkusz | 6-3,2-6,2-6 |
| ITF - M15 Antalya | 2019/12/04 10:45 | Saba Purtseladze v Dijkhuizen, Marc | 3-6,1-6 |