Stadium: Court Central Round: 62 Ground: Hardcourt outdoor
| ITF M25 Monastir | 2023/11/22 13:55 | Robert Strombachs v Mark Wallner | 7-6,6-2 |
| ITF M25 Monastir | 2023/11/20 13:30 | Mark Wallner v Mae Malige | 6-4,4-6,11-9 |
| ITF M25 Monastir | 2023/11/20 08:00 | Mark Wallner v Frederic Schlossmann | 6-4,5-7,10-8 |
| ITF M25 Austin | 2023/11/07 15:50 | Mark Wallner v Lorenzo Esquici | 6-3,2-6,7-10 |
| ITF M25 Austin | 2023/11/06 16:00 | Mark Wallner v Phil Exner | 6-2,6-4 |
| ITF M25 Sarreguemines | 2023/10/24 12:25 | Mark Wallner v Tom Paris | 1-6,7-6,3-6 |
| ITF M25 Sarreguemines | 2023/10/23 08:00 | Mark Wallner v Adam Panaras | 5-7,6-3,12-10 |
| ITF M25 Sarreguemines | 2023/10/22 11:25 | Mark Wallner v Valentin Faure | 6-3,6-4 |