Ground: Hardcourt outdoor
| UTR Pro Noda | 2023/08/21 03:30 | Marsel Znuderl v Ryotaro Matsumura | 0-6,0-6 |
| ITF M25 Osijek | 2023/08/06 10:00 | Dominique Graf v Marsel Znuderl | 4-6,7-6,10-8 |
| ITF M15 Novi Sad | 2023/07/31 09:30 | Marsel Znuderl v Gorazd Srbljak | 7-6,3-6,2-10 |
| ITF M15 Novi Sad | 2023/07/23 07:00 | Marsel Znuderl v Romeo Hadzimehmedovic | 6-4,2-6,11-13 |
| ITF M15 Celje | 2023/06/27 08:40 | Miha Vetrih v Marsel Znuderl | 6-4,7-6 |
| ITF M15 Celje | 2023/06/26 15:25 | Marsel Znuderl v Alen Bill | 6-4,6-1 |
| ITF M25 Kiseljak | 2023/05/30 07:30 | Corey Gaal v Marsel Znuderl | 6-3,6-1 |
| ITF M25 Kiseljak | 2023/05/29 09:30 | Marsel Znuderl v Kirill Mishkin | 6-7,7-6,11-9 |
| UTR Pro Noda | 2023/08/21 00:30 | Paul Howe v Tomonobu Inagi | 3-6,5-7 |