Estádio: Court 12 Round: 54 Ground: Hardcourt outdoor
| ITF - M15 Al Zahra | 2023/11/29 10:20 | Ali Habib v Guy Den Heijer | 6-4,6-3 |
| ITF - M25 Heraklion | 2023/11/11 08:30 | Guy Den Heijer v Cezar Cretu | 4-6,4-6 |
| ITF - M25 Heraklion | 2023/11/10 09:55 | Harry Wendelken v Guy Den Heijer | 5-7,2-6 |
| ITF - M25 Heraklion | 2023/11/08 07:00 | Guy Den Heijer v Mattia Ricci | 6-2,6-1 |
| ITF - M25 Heraklion | 2023/11/07 07:30 | Guy Den Heijer v Simon Freund | 6-2,3-6,10-5 |
| ITF - M25 Heraklion | 2023/11/06 07:00 | Guy Den Heijer v Evangelos Kypriotis | 6-1,7-5 |
| ITF - M25 Heraklion | 2023/11/03 10:20 | Guy Den Heijer v Enrico Dalla Valle | 2-6,1-6 |
| ITF - M25 Heraklion | 2023/11/02 08:00 | Guy Den Heijer v Marlon Vankan | 6-3,7-5 |
| ITF - M15 Monastir | 2023/11/13 08:30 | Antoine Vincent v Raffael Schaer | 7-5,2-6,10-12 |
| ITF - M15 Monastir | 2023/11/08 11:00 | Max Wiskandt v Raffael Schaer | 6-3,0-6,7-5 |
| ITF - M15 Monastir | 2023/10/15 08:00 | Raffael Schaer v Arthur Laborde | 6-1,3-6,7-10 |
| ITF - M15 Monastir | 2023/10/09 08:00 | Aleksandr Lobanov v Raffael Schaer | 7-5,7-5 |
| ITF - M15 Monastir | 2023/10/08 08:00 | Rishabdev Raman v Raffael Schaer | 2-6,3-6 |
| ITF - M15 Monastir | 2023/10/02 08:00 | Raffael Schaer v Vicente O Moratalla | 6-2,2-6,7-10 |
| ITF - M15 Monastir | 2023/10/01 08:00 | Raffael Schaer v Matthieu Chambonniere | 5-7,6-1,10-2 |
| ITF - M25 Klosters | 2023/07/03 12:45 | Gian Luca Tanner v Raffael Schaer | 7-5,6-0 |