Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Belgrade | 2023/06/25 12:00 | Gorazd Srbljak v Joao Eduardo Schiessl | 5-7,1-6 |
| ITF M15 Kursumlijska Banja | 2023/06/21 08:30 | Hynek Barton v Joao Eduardo Schiessl | 6-2,7-5 |
| ITF M15 Kursumlijska Banja | 2023/06/18 16:00 | Viktor Jovic v Joao Eduardo Schiessl | 7-5,6-4 |
| ITF M15 Kursumlijska Banja | 2023/06/18 09:30 | Marat Sharipov v Joao Eduardo Schiessl | 4-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/06/17 17:15 | Joao Eduardo Schiessl v Mwendwa Mbithi | 6-4,6-2 |
| ITF M15 Kursumlijska Banja | 2023/06/15 12:00 | Joao Eduardo Schiessl v Gorazd Srbljak | 7-5,6-7,10-8 |
| ITF M15 Kursumlijska Banja | 2023/06/14 12:00 | Stefan Popovic v Joao Eduardo Schiessl | 2-6,6-7 |
| ITF M15 Kursumlijska Banja | 2023/06/13 11:35 | Nicolas Villalon v Joao Eduardo Schiessl | 2-6,6-7 |
| ITF M15 Kursumlijska Banja | 2023/06/19 07:30 | Gabriel Matuszewski v Dimitrije Zubac | 6-7,6-4,8-10 |
| ITF M15 Kursumlijska Banja | 2023/06/18 11:00 | Dimitrije Zubac v Joel Angel Lucero | 7-6,6-4 |
| ITF M25 Kiseljak | 2023/05/28 09:30 | Elias Julian Werner v Dimitrije Zubac | 6-7,7-5,10-7 |
| ITF M15 Prijedor | 2023/05/15 09:00 | Dimitrije Zubac v Drazen Petrovic | 4-6,6-3,5-10 |
| ITF M15 Prijedor | 2023/05/14 08:00 | Dimitrije Zubac v Milos Milakovic | 7-5,6-4 |
| ITF M15 Osijek | 2023/05/01 12:15 | Dimitrije Zubac v Maximilian Figl | 2-6,1-6 |
| ITF M25 Dubrovnik | 2023/04/03 08:45 | Dimitrije Zubac v Ivan Kremenchutskyi | 1-6,1-6 |
| ITF M25 Dubrovnik | 2023/04/02 11:30 | Dimitrije Zubac v Danilo Raicevic | 5-7,6-2,10-5 |