Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Antalya | 2023/11/05 07:00 | A.J Catanzariti v Maxim Krapivin | 7-5,6-3 |
| ITF M15 Champaign | 2023/09/13 15:00 | Patrick Maloney v A.J Catanzariti | 1-6,7-6,6-3 |
| Challenger Winnipeg | 2023/08/13 21:05 | A.J Catanzariti v Alafia Ayeni | 3-6,6-3,1-6 |
| ITF M25 Southaven | 2023/08/11 15:00 | Andres Andrade v A.J Catanzariti | 6-2,6-4 |
| ITF M25 Southaven | 2023/08/10 16:00 | A.J Catanzariti v Sebastian Sec | 7-6,3-6,7-5 |
| ITF M25 Southaven | 2023/08/08 18:30 | Osgar O'Hoisin v A.J Catanzariti | 3-6,3-6 |
| ITF M15 Pittsburgh | 2023/07/27 20:30 | Kyle Seelig v A.J Catanzariti | 7-6,6-7,6-4 |
| ITF M15 Pittsburgh | 2023/07/26 14:00 | A.J Catanzariti v Preston Brown | 6-3,6-4 |
| ITF M15 Antalya | 2023/11/05 07:00 | Josip Simundza v Aleksei Khomich | 6-4,7-6 |
| UTR Pro Zadar | 2023/10/22 13:00 | Christos Keisidis v Josip Simundza | 7-6,6-3 |
| UTR Pro Zadar | 2023/10/20 09:49 | Yanais Laurent v Josip Simundza | 6-2,6-3 |
| UTR Pro Zadar | 2023/10/19 10:09 | Enrique Bogo v Josip Simundza | 3-6,3-5 |
| UTR Pro Zadar | 2023/10/18 10:12 | Jerko Brkic v Josip Simundza | 3-6,6-3,3-6 |
| ITF M15 Bad Waltersdorf | 2023/10/02 08:00 | Jan Kupcic v Josip Simundza | 6-3,6-2 |
| ITF M15 Bad Waltersdorf | 2023/10/01 09:00 | Leon Benedict v Josip Simundza | 2-6,2-6 |
| ITF M25 Madrid | 2023/09/10 15:00 | Josip Simundza v Rodrigo Mora Clement | 6-2,6-4 |