stadio: Court 1 Round: 25 Ground: Clay
| ITF M15 Litija | 2023/06/13 07:00 | Josip Simundza v Matic Dimic | 6-3,6-2 |
| ITF M15 Litija | 2023/06/12 07:00 | Zak Talic v Josip Simundza | 1-6,3-6 |
| ITF M15 Sarajevo | 2023/06/06 11:50 | Nikola Basic v Josip Simundza | 2-6,6-3,10-4 |
| ITF M15 Osijek | 2023/05/03 09:40 | Josip Simundza v Mohamed Safwat | 1-6,1-6 |
| ITF M25 Spalato | 2023/04/20 10:45 | Gergely Madarasz v Josip Simundza | 7-5,6-2 |
| ITF M25 Spalato | 2023/04/20 07:30 | Paul Woerner v Josip Simundza | 3-6,2-6 |
| Challenger Spalato | 2023/04/09 09:20 | Dane Sweeny v Josip Simundza | 6-3,6-3 |
| ITF M25 Dubrovnik | 2023/04/05 12:10 | Josip Simundza v Simon A Ivanov | 2-6,4-6 |
| ITF M15 Porec | 2023/03/07 12:05 | Matic Kriznik v Daniele Capecchi | 5-7,3-6 |
| ITF M15 Sharm El Sheikh | 2023/03/01 09:25 | Matic Kriznik v Massimo Giunta | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2023/02/22 13:55 | Matic Kriznik v Yeongseok Jeong | 3-6,5-7 |
| Coppa Davis | 2023/02/04 07:00 | Ergi Kirkin v Matic Kriznik | 6-2,6-2 |
| ITF M15 Litija | 2022/07/13 10:00 | Matic Kriznik v Patrik Rikl | 4-6,1-6 |
| ITF M15 Velenje | 2022/07/04 09:30 | Matic Kriznik v Eric Morris | 3-6,1-6 |
| ITF M15 Velenje | 2022/07/03 07:00 | Stefanos Sakellaridis v Matic Kriznik | 3-6,3-6 |