Stadium: Court 3 Round: 25 Ground: Clay
| Challenger Todi | 2023/08/15 10:50 | Carlos Sanchez Jover v Fabrizio Andaloro | 7-6,6-2 |
| Challenger Porto | 2023/07/30 15:50 | Fabrizio Andaloro v Pedro Araujo | 2-6,3-6 |
| ITF M25 Porto | 2023/07/27 10:00 | Fabrizio Andaloro v Jake Van Emburgh | 3-6,3-6 |
| ITF M25 Porto | 2023/07/26 10:00 | Henrique Rocha v Fabrizio Andaloro | 2-6,6-3,4-6 |
| ITF M25 Castelo Branco | 2023/07/23 09:00 | Goncalo Oliveira v Fabrizio Andaloro | 6-2,6-1 |
| ITF M25 Castelo Branco | 2023/07/22 11:30 | Fabrizio Andaloro v Jaime Faria | 6-4,6-1 |
| ITF M25 Castelo Branco | 2023/07/21 08:30 | Jake Van Emburgh v Fabrizio Andaloro | 2-6,6-3,6-7 |
| ITF M25 Castelo Branco | 2023/07/20 11:30 | Fabrizio Andaloro v Tiago Torres | 3-6,6-4,7-5 |
| ITF M25 Lesa | 2023/08/21 13:00 | Guy Den Heijer v Giuseppe La Vela | 4-6,2-6 |
| ITF M15 Eindhoven | 2023/07/31 08:00 | Guy Den Heijer v Daniel De Jonge | 6-7,7-5,11-13 |
| ITF M25 Esch/Alzette | 2023/07/20 09:30 | Guy Den Heijer v David Pichler | 7-5,3-6,5-7 |
| ITF M25 Esch/Alzette | 2023/07/19 12:05 | Guy Den Heijer v Jan Sebesta | 6-7,7-6,6-3 |
| ITF M25 Esch/Alzette | 2023/07/17 15:20 | Guy Den Heijer v William Jucha | 6-4,7-5 |
| ITF M25 Esch/Alzette | 2023/07/17 08:40 | Guy Den Heijer v Mats Bredschneijder | 4-6,6-2,10-6 |
| ITF M25 Esch/Alzette | 2023/07/10 09:30 | Brian Bozemoj v Guy Den Heijer | 6-2,4-6,16-14 |
| ITF M25 The Hague | 2023/07/07 11:35 | Eric Vanshelboim v Guy Den Heijer | 6-2,6-2 |