Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF - M15 - Monastir | 2023/12/07 11:45 | Mark Wallner v Filip Apltauer | 6-7,6-3,6-3 |
| ITF - M15 - Monastir | 2023/12/06 10:10 | Alexey Vatutin v Mark Wallner | 3-6,7-6,1-6 |
| ITF - M15 - Monastir | 2023/12/04 13:30 | Igor Kudriashov v Mark Wallner | 6-4,3-6,3-10 |
| ITF - M15 - Monastir | 2023/12/04 08:00 | Matei Cristian Onofrei v Mark Wallner | 2-6,3-6 |
| ITF - M15 - Monastir | 2023/12/03 10:30 | Leon Formella v Mark Wallner | 0-6,6-7 |
| ITF M25 - Monastir | 2023/11/29 08:30 | Mark Wallner v Jakob Schnaitter | 1-6,0-6 |
| ITF M25 - Monastir | 2023/11/27 13:00 | Mark Wallner v Federico Bove | 6-2,7-5 |
| ITF M25 - Monastir | 2023/11/27 10:00 | Mark Wallner v Yanick Schneider | 6-0,6-1 |
| ITF - M15 - Monastir | 2023/12/07 11:00 | Sebastian Sorger v Guy Den Ouden | 6-2,1-6,0-6 |
| ITF - M15 - Monastir | 2023/12/06 13:40 | Attila Boros v Guy Den Ouden | 1-6,7-5,2-6 |
| ITF M25 - Monastir | 2023/12/02 09:00 | Bogdan Bobrov v Guy Den Ouden | 6-3,7-6 |
| ITF M25 - Monastir | 2023/12/01 09:00 | Guy Den Ouden v Daniel Masur | 7-5,6-1 |
| ITF M25 - Monastir | 2023/11/30 10:30 | Guy Den Ouden v Jakob Schnaitter | 6-4,6-3 |
| ITF M25 - Monastir | 2023/11/28 10:10 | Guy Den Ouden v Maximus Jones | 6-4,6-4 |
| ITF M25 - Heraklion | 2023/11/08 07:00 | Jakub Nicod v Guy Den Ouden | 7-6,6-7,4-6 |
| ITF M25 - Heraklion | 2023/11/05 08:00 | Arthur Gea v Guy Den Ouden | 2-6,2-6 |