Stadium: Court 4 Round: 25 Ground: Clay
| ITF M25 Skopje | 2023/06/07 09:00 | Miljan Zekic v Jeremy Jahn | 1-6,6-1,6-2 |
| ITF M25 Prague | 2023/05/17 10:50 | Jeremy Jahn v Khumoyun Sultanov | 3-6,3-6 |
| ITF M15 Antalya | 2023/05/05 08:00 | Jeremy Jahn v Yshai Oliel | 4-6,4-6 |
| ITF M15 Antalya | 2023/05/03 07:30 | Jeremy Jahn v Calin Manda | 6-1,4-6,7-5 |
| ITF M15 Meerbusch | 2023/04/26 16:10 | Jeremy Jahn v Deney Wassermann | 6-7,6-7 |
| Challenger Split | 2023/04/10 08:00 | Radu Albot v Jeremy Jahn | 6-3,7-5 |
| Challenger Split | 2023/04/09 09:40 | Jeremy Jahn v Rudolf Molleker | 6-3,4-6,6-2 |
| Challenger Barletta | 2023/04/03 10:30 | Jeremy Jahn v Gabriele Piraino | 2-6,3-6 |
| ITF M15 Duffel | 2023/06/12 10:00 | Adrian Oetzbach v Lodewijk Weststrate | 7-5,1-6,12-10 |
| ITF M15 Duffel | 2023/06/11 12:30 | Adrian Oetzbach v Thorben Sannen | 6-2,6-1 |
| ITF M15 Vaasa | 2023/06/08 09:40 | Adrian Oetzbach v Jonathan Mridha | 6-2,3-6,3-6 |
| ITF M15 Vaasa | 2023/06/07 12:50 | Tuncay Duran v Adrian Oetzbach | 4-6,4-6 |
| ITF M15 Constanta | 2023/05/30 08:50 | Adrian Oetzbach v Felipe De Dios | 3-6,6-0,6-10 |
| ITF M15 Constanta | 2023/05/29 10:00 | Adrian Oetzbach v Francesco Mineo Mineo | 6-1,6-0 |
| ITF M15 Constanta | 2023/05/28 13:00 | Adrian Oetzbach v Dan Radu Munteanu | 6-0,6-2 |
| ITF M15 Alaminos-Larnaca | 2023/05/10 07:00 | Adrian Oetzbach v Sebastian Prechtel | 5-7,6-7 |