Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Karlsruhe | 2019/06/04 10:25 | Christoph Negritu v Adrian Oetzbach | 7-5,6-7,7-10 |
| ITF M15 Monastir | 2023/03/15 12:55 | Pablo Trochu v Adrian Oetzbach | 6-3,6-0 |
| ITF M15 Aktobe | 2023/03/08 05:00 | Adrian Oetzbach v Evgeny Philippov | 1-6,7-6,4-6 |
| ITF M15 Aktobe | 2023/03/01 09:55 | Adrian Oetzbach v Shuichi Sekiguchi | 3-6,4-6 |
| ITF M15 Monastir | 2023/02/20 08:30 | Adrian Oetzbach v Andrea Bolla | 6-4,3-6,10-12 |
| ITF M15 Monastir | 2023/02/19 09:00 | Adrian Oetzbach v Geni Inoue | 6-0,6-1 |
| ITF M15 Monastir | 2023/02/12 08:30 | Adrian Oetzbach v Olivier Rojas | 2-6,3-6 |
| ITF M25 Bath | 2023/02/08 11:30 | Adrian Oetzbach v George Houghton | 2-6,2-6 |
| ITF M15 Antalya | 2023/01/24 11:45 | Davide Galoppini v Adrian Oetzbach | 4-6,6-2,6-0 |
| ITF M15 Monastir | 2023/03/17 08:30 | Christoph Negritu v Ray Ho | 3-6,7-6,2-6 |
| ITF M15 Monastir | 2023/03/16 10:10 | Christoph Negritu v Kokoro Isomura | 6-3,6-1 |
| ITF M15 Monastir | 2023/03/14 11:40 | Christoph Negritu v Xiaofei Wang | 7-6,6-4 |
| ITF M15 Monastir | 2023/03/07 08:30 | Hady Habib v Christoph Negritu | 6-2,3-6,6-1 |
| ITF M15 Monastir | 2023/03/03 10:00 | Christoph Negritu v Renta Tokuda | 1-6,1-6 |
| ITF M15 Monastir | 2023/03/02 08:30 | Tao Mu v Christoph Negritu | 4-6,4-6 |
| ITF M15 Monastir | 2023/02/28 10:35 | Isaac Nortey v Christoph Negritu | 5-7,1-6 |
| ITF M15 Monastir | 2023/02/21 09:30 | Christoph Negritu v Franco Roncadelli | 6-1,6-7,5-7 |