Stadium: Court 4 Round: 27 Ground: Clay
| ITF M25 Santa Margherita | 2023/10/04 12:25 | Goncalo Oliveira v Federico Arnaboldi | 6-3,6-3 |
| ITF M25 Santa Margherita | 2023/10/02 10:40 | Goncalo Oliveira v Pietro Pampanin | 2-6,6-2,6-3 |
| ITF M25 Santa Margherita | 2023/09/26 13:20 | Goncalo Oliveira v Gabriele Piraino | 5-7,4-6 |
| ITF M25 Sintra | 2023/09/15 10:50 | Goncalo Oliveira v Tiago Pereira | 6-4,3-6,6-2 |
| ITF M25 Sintra | 2023/09/14 10:40 | Goncalo Oliveira v Francisco Rocha | 6-3,6-2 |
| ITF M25 Sintra | 2023/09/13 09:00 | Goncalo Oliveira v Leopold Zima | 6-0,6-1 |
| ITF M25 Idanha-A-Nova | 2023/09/04 08:00 | Goncalo Oliveira v Alberto Barroso Campos | 6-4,6-4 |
| ITF M25 Idanha-A-Nova | 2023/09/02 08:00 | Goncalo Oliveira v Robin Bertrand | 4-6,6-3,6-4 |
| ITF M25 Santa Margherita | 2023/10/04 08:00 | Kilian Feldbausch v Kirill Kivattsev | 6-7,7-5,7-5 |
| ITF M25 Santa Margherita | 2023/10/03 08:00 | Giorgio Tabacco v Kilian Feldbausch | 2-6,6-4,4-6 |
| Challenger Braga | 2023/09/25 12:55 | Zsombor Piros v Kilian Feldbausch | 3-6,7-5,6-3 |
| ITF M25 Sion | 2023/09/01 15:50 | Remy Bertola v Kilian Feldbausch | 6-4,7-5 |
| ITF M25 Sion | 2023/08/31 12:00 | Noah Lopez v Kilian Feldbausch | 2-6,4-6 |
| ITF M25 Sion | 2023/08/29 12:30 | Kilian Feldbausch v Gianmarco Ferrari | 6-3,6-2 |
| ITF M15 Caslano | 2023/08/22 07:00 | Luigi Sorrentino v Kilian Feldbausch | 1-6,7-5,7-5 |
| ITF M25 Muttenz | 2023/08/16 11:25 | Kilian Feldbausch v Jeffrey Von Der Schulenburg | 5-7,4-6 |