| UTR Pro Zadar | 2023/03/29 06:00 | Tim Heger v Kristian Juhas | 4-6,3-6 |
| UTR Pro Zadar | 2023/03/28 08:15 | Tim Heger v Sebastian Prechtel | 4-6,4-6 |
| UTR Pro Zadar | 2023/03/27 10:30 | Paul Woerner v Tim Heger | 6-7,7-5,6-3 |
| ITF M15 Opatija | 2023/03/22 08:30 | Tim Heger v Remy Bertola | 3-6,3-6 |
| ITF M15 Rovinj | 2023/03/12 09:00 | Michele Ribecai v Tim Heger | 6-4,6-1 |
| ITF M15 Porec | 2023/03/08 12:55 | Victorio Marquiselli v Tim Heger | 7-6,6-4 |
| ITF M15 Porec | 2023/03/07 10:40 | Alessandro Ingarao v Tim Heger | 6-7,6-7 |
| ITF M15 Porec | 2023/03/06 13:50 | Maks Lukman v Tim Heger | 2-6,5-7 |
| UTR Pro Zadar | 2023/03/30 07:30 | Sebastian Prechtel v Nikola Basic | 2-6,6-3,7-5 |
| UTR Pro Zadar | 2023/03/28 09:00 | Paul Woerner v Nikola Basic | 6-7,4-6 |
| Challenger Zadar | 2023/03/19 11:40 | Nikola Basic v Damien Wenger | 3-6,1-6 |
| ITF M15 Rovinj | 2023/03/14 09:00 | Sergi Perez Contri v Nikola Basic | 7-5,6-2 |
| ITF M15 Rovinj | 2023/03/13 09:00 | Michael Gloeckler v Nikola Basic | 3-6,6-3,7-10 |
| ITF M15 Rovinj | 2023/03/12 09:00 | Matteo Fondriest v Nikola Basic | 7-6,4-6,8-10 |
| ITF M15 Porec | 2023/03/07 09:00 | Nikola Basic v Riccardo Mascarini | 3-6,6-3,5-10 |
| ITF M15 Porec | 2023/03/06 10:35 | Nikola Basic v Nik Mikovic | 6-3,6-0 |