Stadium: Court 4 Round: 62 Ground: Clay
| ITF M25 Split | 2023/04/17 15:30 | Tim Heger v Marsel Znuderl | 4-6,4-6 |
| ITF M25 Split | 2023/04/17 07:00 | Lamin L Da Silva v Marsel Znuderl | 2-6,6-7 |
| ITF M15 Sharm El Sheikh | 2023/03/27 08:30 | Marsel Znuderl v Max Benaim | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2023/03/19 12:00 | Samer Al Tori v Marsel Znuderl | 6-3,6-4 |
| ITF M15 Porec | 2023/03/05 11:30 | Marsel Znuderl v Victorio Marquiselli | 4-6,4-6 |
| ITF M15 Monastir | 2023/01/29 09:00 | Luca Wiedenmann v Marsel Znuderl | 6-0,6-2 |
| ITF M15 Monastir | 2023/01/22 11:30 | Karol Tomanski v Marsel Znuderl | 6-0,6-1 |
| ITF M15 Monastir | 2023/01/16 08:30 | Marsel Znuderl v Valentin Lapalu | 1-6,3-6 |
| ITF M25 Split | 2023/04/17 16:10 | Serafin Zund v Felipe Mikkelsen | 7-5,6-0 |
| ITF M15 Antalya | 2023/04/05 12:45 | Serafin Zund v Hanwen Li | 6-7,2-6 |
| ITF M25 Palmanova | 2023/03/18 13:00 | Serafin Zund v Carlos Giraldi | 1-6,1-6 |
| ITF M15 Antalya | 2023/03/07 12:40 | Gabriele Pennaforti v Serafin Zund | 6-2,6-2 |
| ITF M15 Antalya | 2023/02/27 12:00 | Yanaki Milev v Serafin Zund | 6-2,6-4 |
| ITF M15 Antalya | 2023/02/26 07:00 | Ye Hongyu v Serafin Zund | 6-2,6-0 |
| ITF M25 Antalya | 2023/02/05 07:00 | Serafin Zund v Federico Bove | 6-4,6-2 |
| ITF M25 Antalya | 2023/01/29 07:30 | Serafin Zund v Gheorghe Claudiu Schinteie | 2-6,6-4,3-10 |