Ground: Clay
| ITF M15 Dubrovnik | 2025/04/16 09:30 | Josip Simundza v Carlos Lopez Montagud | 4-6,7-6,1-6 |
| ITF M15 Dubrovnik | 2025/04/15 13:22 | Lucas Marionneau v Josip Simundza | 4-6,5-7 |
| ITF M15 Opatija | 2025/03/28 09:00 | Luka Mikrut v Josip Simundza | 6-1,6-2 |
| ITF M15 Opatija | 2025/03/27 09:00 | Josip Simundza v Gergely Madarasz | 3-6,6-3,6-3 |
| ITF M15 Opatija | 2025/03/26 09:00 | Savva Rybkin v Josip Simundza | 1-6,6-4,6-7 |
| Challenger Zadar | 2025/03/17 09:00 | Luka Pavlovic v Josip Simundza | 6-2,6-2 |
| Challenger Zadar | 2025/03/16 10:05 | Josip Simundza v Marco Cecchinato | 4-6,7-5,6-1 |
| ITF M15 Porec | 2025/03/11 10:30 | Josip Simundza v Mili Poljicak | 1-6,6-4,4-6 |
| ITF M15 Antalya | 2025/01/23 13:15 | Alexander Wagner v Rodrigo Pacheco Mendez | 6-7,2-6 |
| ITF M15 Antalya | 2025/01/23 09:08 | Henrik Bladelius v Alexander Wagner | 4-6,2-6 |
| ITF M15 Antalya | 2024/12/22 07:00 | Alexander Wagner v Romeo Hadzimehmedovic | 6-4,4-6,6-10 |
| ITF M15 Antalya | 2024/12/16 11:15 | Alexander Wagner v Anthony Genov | 4-6,5-7 |
| ITF M15 Antalya | 2024/12/09 13:40 | Alexander Wagner v Dinko Dinev | 5-7,3-6 |
| ITF M15 Trnava | 2024/09/23 07:00 | Alexander Wagner v Gian M Di Natale | 1-6,2-6 |
| ITF M15 Vienna | 2024/08/28 13:35 | Andrej Martin v Alexander Wagner | 6-3,6-2 |
| ITF M15 Kottingbrunn | 2024/08/20 08:00 | Alexander Wagner v Jonas Trinker | 6-7,6-4,4-6 |