| ITF M25 Maribor | 2022/08/28 09:45 | Josip Simundza v Tim Heger | 4-6,4-6 |
| UTR Pro Zadar | 2023/03/30 06:00 | Oleg Prihodko v Josip Simundza | 6-2,7-5 |
| UTR Pro Zadar | 2023/03/28 08:57 | Andre Biro v Josip Simundza | 6-2,6-3 |
| UTR Pro Zadar | 2023/03/27 08:58 | Josip Simundza v Duje Ajdukovic | 6-2,2-6,2-6 |
| ITF M25 Opatija | 2023/03/19 13:30 | Josip Simundza v Gian M Di Natale | 3-6,2-6 |
| ITF M15 Rovinj | 2023/03/14 10:15 | Paul Woerner v Josip Simundza | 6-2,3-6,10-7 |
| ITF M15 Rovinj | 2023/03/13 10:30 | Josip Simundza v Twan Van Zijl | 6-3,6-3 |
| ITF M15 Rovinj | 2023/03/12 12:00 | Josip Simundza v Jaka Protic Zakelj | 6-0,6-1 |
| ITF M15 Porec | 2023/03/05 11:30 | Josip Simundza v Aljaz Jeran | 6-3,6-1 |
| 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 M15 Porec | 2023/03/07 10:40 | Alessandro Ingarao v Tim Heger | 6-7,6-7 |