Stadium: Court 21 Round: 25 Ground: Clay
| ITF Turkey F19 | 2018/05/17 09:20 | Marsel Ilhan v Alexander Weis | 2-6,6-4,6-2 |
| ITF M15 - Antalya | 2021/02/09 07:00 | Sebastian Gima v Alexander Weis | 2-6,6-3,10-7 |
| ITF M15 - Antalya | 2021/02/08 07:00 | Luis Patino v Alexander Weis | 5-7,1-6 |
| ITF M15 - Antalya | 2021/02/07 06:00 | Youcef Rihane v Alexander Weis | 4-6,4-6 |
| ITF M15 - Antalya | 2021/02/02 10:00 | Alexander Weis v Admir Kalender | 3-6,6-7 |
| ITF M15 - Antalya | 2021/02/02 07:00 | Alexander Weis v Youcef Rihane | 5-7,6-1,10-1 |
| ITF M15 - Antalya | 2021/02/01 11:45 | Alexander Weis v Nuno Borges | 6-7,2-6 |
| ITF M15 - Antalya | 2021/01/31 15:40 | Nicolo Turchetti v Alexander Weis | 2-6,3-6 |
| ITF M15 - Antalya | 2021/01/31 08:20 | Alexander Weis v Felix Corwin | 7-5,6-1 |
| ITF M15 - Antalya | 2021/03/03 08:40 | Marsel Ilhan v Toby Alex Kodat | 6-1,1-6,6-7 |
| ITF M15 - Antalya | 2021/02/16 08:00 | Marsel Ilhan v Yshai Oliel | 5-7,3-6 |
| ITF M15 - Antalya | 2021/02/11 06:55 | Agustin Velotti v Marsel Ilhan | 6-4,6-4 |
| ITF M15 - Antalya | 2021/02/10 07:00 | Marsel Ilhan v Dragos Nicolae Madaras | 7-5,6-7,6-2 |
| Challenger - Antalya | 2021/02/02 07:30 | Marsel Ilhan v Facundo Bagnis | 3-6,4-6 |
| Challenger - Antalya | 2021/01/29 07:30 | Duje Ajdukovic v Marsel Ilhan | 6-3,6-3 |
| Challenger - Istanbul | 2021/01/17 13:15 | Marsel Ilhan v Joao Menezes | 6-7,4-6 |
| ATP - Antalya | 2021/01/08 07:00 | Adrian Andreev v Marsel Ilhan | 6-4,6-3 |