Stadium: Court 20 Round: 62 Ground: Clay
| ITF M15 - Antalya | 2023/05/15 09:10 | Jaime Caldes v Umut Akkoyun | 6-1,6-2 |
| ITF M15 - Antalya | 2023/05/08 10:55 | Umut Akkoyun v Mert Naci Turker | 2-6,0-6 |
| ITF M15 - Antalya | 2023/05/07 07:00 | Umut Akkoyun v Oleg Khotkov | 6-1,6-1 |
| ITF M15 - Antalya | 2023/03/29 10:05 | Umut Akkoyun v Dax Donders | 2-6,1-6 |
| ITF M15 - Antalya | 2023/02/19 07:00 | Umut Akkoyun v Daniele Minighini | 4-6,1-6 |
| ITF M25 - Antalya | 2023/02/05 07:00 | Filippo Verdese v Umut Akkoyun | 6-2,6-0 |
| ITF M15 - Antalya | 2022/11/16 06:25 | Mircea-Alexandru Jecan v Umut Akkoyun | 6-1,6-1 |
| ITF M15 - Antalya | 2022/10/23 07:00 | Umut Akkoyun v Matvey Minin | 4-6,1-6 |
| ITF M15 - Antalya | 2023/11/05 07:00 | Hamid Reza Nadaf v Yannik Kelm | 6-7,4-6 |
| Challenger Ismaning | 2023/10/29 12:10 | Skander Mansouri v Yannik Kelm | 6-3,3-6,7-6 |
| ITF M15 - Buschhausen | 2023/09/12 14:30 | Yannik Kelm v Matthias Ujvary | 0-6,2-6 |
| ITF M15 - Allershausen | 2023/08/31 13:10 | Yannik Kelm v Christoph Negritu | 2-6,4-6 |
| ITF M15 - Allershausen | 2023/08/30 12:20 | Jakob Schnaitter v Yannik Kelm | 6-4,6-7,2-6 |
| ITF M15 - Huy | 2023/08/23 14:30 | Yannik Kelm v Jurriaan Bol | 6-7,1-6 |
| ITF M15 - Kottingbrunn | 2023/08/17 09:35 | Neil Oberleitner v Yannik Kelm | 6-4,7-6 |
| ITF M15 - Kottingbrunn | 2023/08/16 10:00 | Dominik Kellovsky v Yannik Kelm | 6-7,3-6 |