Stadium: Court 1 Round: 44 Ground: Clay
| UTR Pro Zadar | 2023/04/01 12:30 | Josip Simundza v Tim Heger | 6-3,5-4 |
| UTR Pro Zadar | 2023/03/31 06:00 | Tim Heger v Nikola Basic | 6-4,6-2 |
| 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 M25 Opatija | 2023/03/21 08:00 | Giannicola Misasi v Nik Mikovic | 6-1,6-4 |
| ITF M15 Rovinj | 2023/03/13 10:30 | Sergi Perez Contri v Nik Mikovic | 6-3,6-3 |
| ITF M15 Rovinj | 2023/03/12 12:00 | Nik Mikovic v Piotr Czaczkowski | 6-1,6-0 |
| ITF M15 Porec | 2023/03/06 10:35 | Nikola Basic v Nik Mikovic | 6-3,6-0 |
| ITF M15 Porec | 2023/03/05 09:00 | Andrei Cuceu v Nik Mikovic | 1-6,0-6 |
| ITF M15 Antalya | 2023/02/21 07:00 | Igor Gimenez v Nik Mikovic | 6-4,6-3 |
| ITF M15 Antalya | 2023/02/20 10:05 | Nik Mikovic v Utku Kerem Biberli | 6-1,6-3 |
| ITF M15 Antalya | 2023/02/19 07:00 | Nik Mikovic v Eitan Dray | 6-4,7-5 |