Stadium: Spaett Round: 25 Ground: Clay
| ITF M15 Allershausen | 2023/08/30 08:00 | Karlo Cubelic v Mark Wallner | 6-3,2-6,7-10 |
| ITF M15 Überlingen | 2023/08/17 08:00 | Mark Wallner v Fnu Nidunjianzan | 4-6,6-4,3-6 |
| ITF M15 Überlingen | 2023/08/16 08:00 | Gregor Ramskogler v Mark Wallner | 3-6,2-6 |
| ITF M15 Überlingen | 2023/08/14 08:00 | Daniel L Salmeron v Mark Wallner | 1-6,6-7 |
| ITF M15 Frankfurt Nad Mohanem | 2023/08/07 16:00 | Gregor Ramskogler v Mark Wallner | 6-4,7-5 |
| ITF M15 Frankfurt Nad Mohanem | 2023/08/07 10:00 | Mark Wallner v Giuseppe La Vela | 6-4,7-5 |
| ITF M15 Celje | 2023/06/27 07:00 | Gian Marco Ortenzi v Mark Wallner | 6-4,6-4 |
| ITF M15 Celje | 2023/06/26 11:40 | Mark Wallner v Alexander Klintcharov | 6-2,7-6 |
| ITF M15 Allershausen | 2023/08/30 08:00 | Adam Briant v Lawrence Sciglitano | 4-6,4-6 |
| ITF M15 Allershausen | 2023/08/29 13:00 | Juan M B Pazmino v Lawrence Sciglitano | 2-6,0-6 |
| ITF M15 Huy | 2023/08/21 07:00 | Jim Hendrikx v Lawrence Sciglitano | 0-6,7-5,10-8 |
| ITF M25 Ystad | 2023/08/15 08:35 | Oskar Jansson v Lawrence Sciglitano | 6-1,7-5 |
| ITF M25 Ystad | 2023/08/14 10:20 | Jonathan Backman v Lawrence Sciglitano | 6-2,2-6,7-10 |
| ITF M15 Eupen | 2023/08/08 11:00 | Lawrence Sciglitano v Cesar Bouchelaghem | 6-4,2-6,6-10 |
| ITF M15 Eupen | 2023/08/07 10:00 | Lawrence Sciglitano v Sebastian Santibanez | 5-7,6-2,14-12 |
| ITF M25 Wetzlar | 2023/07/31 08:00 | Giuseppe La Vela v Lawrence Sciglitano | 6-3,6-1 |