Stadium: Court Belem Round: 14 Ground: Clay
| Challenger Braga | 2023/09/25 11:40 | Oriol Roca Batalla v Giovanni Fonio | 6-3,6-7,6-1 |
| Challenger Braga | 2023/09/24 14:10 | Pedro Araujo v Giovanni Fonio | 1-6,7-5,5-7 |
| Challenger Sibiu | 2023/09/21 08:40 | Duje Ajdukovic v Giovanni Fonio | 4-6,6-3,6-2 |
| Challenger Sibiu | 2023/09/20 10:20 | Giovanni Fonio v Cezar Cretu | 7-6,6-3 |
| Challenger Genoa | 2023/09/04 11:50 | Giovanni Fonio v Franco Agamenone | 6-7,6-4,3-6 |
| Challenger Como | 2023/08/29 10:35 | Giovanni Fonio v Valentin Royer | 4-6,4-6 |
| Challenger Como | 2023/08/28 13:40 | Giovanni Fonio v David Jorda Sanchis | 4-6,6-3,7-5 |
| Challenger Augsburg | 2023/08/22 08:00 | Oliver Crawford v Giovanni Fonio | 6-2,6-3 |
| ITF M25 Zlatibor | 2023/09/29 09:05 | Luka Mikrut v Andrew Paulson | 5-7,6-7 |
| ITF M25 Zlatibor | 2023/09/28 07:30 | Luka Mikrut v Oleg Prihodko | 6-3,7-6 |
| ITF M25 Maribor | 2023/09/07 10:00 | Nikola Basic v Luka Mikrut | 6-4,6-4 |
| ITF M25 Maribor | 2023/09/06 10:40 | Tomas Lipovsek Puches v Luka Mikrut | 1-6,1-6 |
| ITF M15 Vienna | 2023/09/01 09:45 | Luka Mikrut v Dominik Kellovsky | 4-6,0-6 |
| ITF M15 Vienna | 2023/08/31 13:00 | Luka Mikrut v Pavel Nejedly | 6-2,6-0 |
| ITF M15 Vienna | 2023/08/29 08:00 | Luka Mikrut v Paul Woerner | 6-2,6-0 |
| ITF M15 Kottingbrunn | 2023/08/18 11:30 | Neil Oberleitner v Luka Mikrut | 2-6,6-4,7-6 |