Stadium: Court 1 Round: 54 Ground: Clay
| ITF M25 Santa Margherita | 2023/10/08 08:30 | Marcel Marlon Sudzum v Toby Martin | 1-6,0-6 |
| ITF M25 Santa Margherita | 2023/09/17 08:30 | Marcel Marlon Sudzum v Marco Dessi | 1-6,3-6 |
| ITF M15 Saarlouis | 2023/06/18 09:00 | Marcel Marlon Sudzum v Collin Altamirano | 1-6,2-6 |
| ITF M25 Risskov/Aarhus | 2023/06/11 12:50 | Oren Vasser v Marcel Marlon Sudzum | 6-2,6-1 |
| ITF M25 Most | 2023/05/21 08:00 | Lukas Velik v Marcel Marlon Sudzum | 6-4,6-1 |
| ITF M25 Santa Margherita | 2023/04/30 08:00 | Leonardo Catani v Marcel Marlon Sudzum | 6-3,6-1 |
| ITF M25 Santa Margherita | 2023/04/23 11:00 | Mikalai Haliak v Marcel Marlon Sudzum | 6-4,6-1 |
| ITF M25 Santa Margherita | 2023/04/16 08:30 | Giannicola Misasi v Marcel Marlon Sudzum | 6-0,6-1 |
| ITF M25 Santa Margherita | 2023/10/10 12:20 | Timo Stodder v Giovanni Calvano | 6-2,6-4 |
| ITF M25 Santa Margherita | 2023/10/09 08:00 | Pietro Marino v Giovanni Calvano | 4-6,0-6 |
| ITF M25 Santa Margherita | 2023/10/08 08:30 | Alexander Wolfschmidt v Giovanni Calvano | 2-6,1-6 |
| ITF M15 Melilla | 2023/09/21 12:35 | Giovanni Calvano v Maxime Mora | 6-2,4-6,3-6 |
| ITF M15 Melilla | 2023/09/20 10:30 | Xavi Matas Ortega v Giovanni Calvano | 7-6,6-7,2-6 |
| ITF M15 Vienna | 2023/08/31 08:00 | Andrey Chepelev v Giovanni Calvano | 6-7,6-2,7-5 |
| ITF M15 Vienna | 2023/08/30 12:00 | Giovanni Calvano v Andrej Krajcik | 6-4,6-0 |
| ITF M15 Huy | 2023/08/24 08:55 | Sidane Pontjodikromo v Giovanni Calvano | 6-2,6-3 |