Stadium: Court 15 Round: 62 Ground: Clay
| ITF M25 Madrid | 2023/11/27 09:00 | Stijn Slump v Javier Molino | 6-2,6-7,10-5 |
| ITF M25 Madrid | 2023/11/26 09:00 | Stijn Slump v David Puig Molina | 6-4,6-3 |
| ITF M25 Vale Do Lobo | 2023/11/20 10:30 | Stijn Slump v Russell Henderson | 3-6,6-1,7-10 |
| ITF M25 Vale Do Lobo | 2023/11/15 11:35 | Michael Geerts v Stijn Slump | 6-4,6-4 |
| ITF M25 Vale Do Lobo | 2023/11/14 10:00 | Stijn Slump v Goncalo Falcao | 6-1,6-4 |
| ITF M25 Vale Do Lobo | 2023/11/13 11:00 | Stijn Slump v Keanu Elias Immler | 6-2,6-2 |
| ITF M25 Monastir | 2023/11/10 08:30 | Stijn Slump v Hady Habib | 4-6,2-6 |
| ITF M25 Monastir | 2023/11/09 11:00 | Gian Marco Moroni v Stijn Slump | 6-7,6-2,2-6 |
| ITF M15 Valencia | 2023/11/12 10:00 | Stefan Cizelj-Zivkovic v Noah Perfetti | 3-6,1-6 |
| ITF M25 Benicarló | 2023/11/05 08:30 | Stefan Cizelj-Zivkovic v Nicolas Rafael Goldberg Alviani | 1-6,1-6 |
| ITF M15 Irákleio | 2023/10/23 07:30 | Stefan Cizelj-Zivkovic v Alexander Orlov | 2-6,6-2,11-13 |
| ITF M15 Irákleio | 2023/10/22 08:30 | Gabriel Matuszewski v Stefan Cizelj-Zivkovic | 4-6,4-6 |
| ITF M15 Irákleio | 2023/10/15 07:00 | Stefan Cizelj-Zivkovic v Graham Maassen | 3-6,3-6 |
| ITF M15 Kuršumlijska Banja | 2023/09/17 08:30 | Stefan Cizelj-Zivkovic v Jerko Brkic | 3-6,6-4,8-10 |
| ITF M15 Kuršumlijska Banja | 2023/09/10 09:30 | Alexandar Balj v Stefan Cizelj-Zivkovic | 6-2,6-2 |
| ITF M15 Madrid | 2023/09/05 10:00 | Stefan Cizelj-Zivkovic v Luis Francisco | 3-6,2-6 |