Stadium: Quadra 2 Round: 25 Ground: Clay
| ITF M15 Belem | 2023/08/18 19:00 | Rodrigo Pacheco Mendez v Joao Eduardo Schiessl | 6-2,6-3 |
| ITF M15 Belem | 2023/08/17 19:25 | Joao M Nusdeo v Joao Eduardo Schiessl | 1-6,2-6 |
| ITF M25 Esch/Alzette | 2023/07/19 15:35 | Joao Eduardo Schiessl v Samuel Brosset | 7-6,5-7,4-6 |
| ITF M25 Biella | 2023/07/06 14:00 | Joao Eduardo Schiessl v Stefano Napolitano | 1-6,3-6 |
| ITF M25 Biella | 2023/07/05 11:50 | Giorgio Tabacco v Joao Eduardo Schiessl | 6-7,6-7 |
| ITF M25 Biella | 2023/07/04 16:45 | Joao Eduardo Schiessl v Ryusuke Horiuchi | 6-0,6-3 |
| ITF M25 Biella | 2023/07/03 11:00 | Joao Eduardo Schiessl v Bautista Vilicich | 6-0,7-5 |
| ITF M15 Belgrade | 2023/06/27 07:00 | Joao Eduardo Schiessl v Louis Tessa | 6-7,4-6 |
| Challenger Santa Fe | 2023/07/04 19:05 | Mariano Navone v Joao Victor C Loureiro | 6-2,6-4 |
| Challenger Medellin | 2023/06/26 20:35 | Keenan Mayo v Joao Victor C Loureiro | 6-4,6-4 |
| ITF M15 Duffel | 2023/06/14 11:00 | Joao Victor C Loureiro v Constantin Bittoun Kouzmine | 3-6,2-6 |
| ITF M15 Nyiregyhaza | 2023/06/07 09:30 | Tadeas Paroulek v Joao Victor C Loureiro | 5-7,6-4,6-4 |
| ITF M15 Constanta | 2023/05/30 10:35 | Joao Victor C Loureiro v Olaf Pieczkowski | 4-6,6-1,4-6 |
| ITF M15 Kursumlijska Banja | 2023/05/24 13:20 | Boris Butulija v Joao Victor C Loureiro | 7-6,6-4 |
| Challenger Coquimbo | 2023/05/01 14:00 | Ignacio Monzon v Joao Victor C Loureiro | 2-6,7-6,6-4 |
| Challenger Coquimbo | 2023/04/30 15:25 | Diego Ortiz Gamonal v Joao Victor C Loureiro | 2-6,1-6 |