Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Belem | 2023/08/15 17:00 | Nusdeo, Joao Marcos v Gabriel Roveri Sidney | 6-4,2-6,7-5 |
| ITF - M15 Monastir | 2023/07/16 08:00 | Ignasi Forcano v Nusdeo, Joao Marcos | 4-6,7-5,13-11 |
| ITF - M15 Monastir | 2023/07/09 08:30 | Nusdeo, Joao Marcos v Alvin N Tudorica | 2-6,2-6 |
| ITF - M15 Monastir | 2023/07/03 08:30 | Nusdeo, Joao Marcos v Scott, Andreas | 3-6,0-6 |
| ITF - M15 Monastir | 2023/07/02 08:30 | Nusdeo, Joao Marcos v Hugo Cardinaud | 7-5,6-4 |
| ITF M15 Chieti | 2023/06/12 07:30 | Nusdeo, Joao Marcos v Rushil Khosla | 4-6,4-6 |
| ITF M15 Chieti | 2023/06/11 07:00 | Nusdeo, Joao Marcos v Francesco Cano | 4-6,6-4,10-5 |
| ITF M15 Tabasco | 2023/05/22 21:00 | Nusdeo, Joao Marcos v Keegan Smith | 2-6,5-7 |
| 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 |
| ITF M15 Belgrade | 2023/06/26 11:35 | Joao Eduardo Schiessl v Zubac, Dimitrije | 6-0,6-1 |
| ITF M15 Belgrade | 2023/06/25 12:00 | Gorazd Srbljak v Joao Eduardo Schiessl | 5-7,1-6 |