Ground: Hardcourt outdoor
| ITF M25 Maribor Qual | 2023/09/03 08:00 | Marsel Znuderl v Tilen Kovac | 3-6,1-6 |
| UTR Pro Noda | 2023/08/26 06:45 | Shun Oue v Marsel Znuderl | 6-4,3-0 |
| UTR Pro Noda | 2023/08/24 00:00 | Marsel Znuderl v Tomonobu Inagi | 6-3,0-6,2-6 |
| UTR Pro Noda | 2023/08/23 00:00 | Marsel Znuderl v Brody Nejedly-Krall | 6-3,1-6,0-6 |
| UTR Pro Noda | 2023/08/22 05:32 | Marsel Znuderl v Paul Howe | 6-4,3-6,2-6 |
| 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 |
| UTR Pro Miki | 2023/07/02 05:15 | Brody Nejedly v Yuto Takahashi | 6-3,2-6,6-3 |
| UTR Pro Miki | 2023/06/30 06:00 | Yuto Takahashi v Mizuki Kawada | 5-7,6-6 |
| UTR Pro Miki | 2023/06/28 02:00 | Yuto Takahashi v Ryotaro Taguchi | 2-6,4-6 |