Stadium: Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Osijek | 2023/05/03 09:40 | Josip Simundza v Mohamed Safwat | 1-6,1-6 |
| ITF M25 Split | 2023/04/20 10:45 | Gergely Madarasz v Josip Simundza | 7-5,6-2 |
| ITF M25 Split | 2023/04/20 07:30 | Paul Woerner v Josip Simundza | 3-6,2-6 |
| Challenger Split | 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 |
| UTR Pro Zadar | 2023/04/01 12:30 | Josip Simundza v Tim Heger | 6-3,5-4 |
| 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 Florida | 2023/05/13 17:33 | Jerry Barton v Kevin Humpfner | 4-1 |
| UTR Pro Florida | 2023/05/12 18:00 | Mikel Anderson v Kevin Humpfner | 1-6,6-1,0-6 |
| UTR Pro Florida | 2023/05/11 20:20 | Oscar Brown v Kevin Humpfner | 7-6,6-5 |
| UTR Pro Florida | 2023/05/09 21:00 | Joao Ceolin v Kevin Humpfner | 4-6,7-5,7-6 |
| UTR Pro Florida | 2023/05/08 18:00 | Kevin Humpfner v Daniel Phillips | 6-0,6-2 |
| ITF M15 Sunrise | 2023/04/11 21:30 | Mikel Anderson v Kevin Humpfner | 2-6,2-6 |
| ITF M15 Sunrise | 2023/04/11 14:00 | Kevin Humpfner v Oren Vasser | 6-1,6-3 |
| UTR Pro Florida | 2023/04/01 14:53 | Kevin Humpfner v Roberto Cid Subervi | 2-6,0-6 |