Stadium: Court 3 Round: 26 Ground: Hardcourt indoor
| ITF M25 Nevers | 2023/10/03 11:15 | Lucas Bouquet v Mark Wallner | 2-6,2-6 |
| ITF M25 Nevers | 2023/10/02 08:55 | Mark Wallner v Hugo Pierre | 6-4,6-4 |
| ITF M25 Nevers | 2023/10/01 08:00 | Mark Wallner v Raphael Vaksmann | 6-2,6-4 |
| ITF M15 Forbach | 2023/09/26 08:45 | Mark Wallner v Hazem Naw | 3-6,5-7 |
| ITF M15 Forbach | 2023/09/25 08:00 | Hugo Pierre v Mark Wallner | 7-6,4-6,11-13 |
| ITF M15 Forbach | 2023/09/24 09:05 | Hugo Soares v Mark Wallner | 5-7,2-6 |
| ITF M25 Plaisir | 2023/09/11 14:50 | Mark Wallner v Yanis Ghazouani Durand | 2-6,5-7 |
| ITF M25 Plaisir | 2023/09/11 06:55 | Mark Wallner v Johan Sionneau | 6-0,6-2 |
| ITF M25 Nevers | 2023/10/03 14:20 | Ronan Joncour v Marvin Moeller | 6-4,0-6,2-6 |
| Challenger Bad Waltersdorf | 2023/09/22 08:30 | Vit Kopriva v Marvin Moeller | 6-4,7-5 |
| Challenger Bad Waltersdorf | 2023/09/21 08:00 | Raul Brancaccio v Marvin Moeller | 3-6,3-6 |
| Challenger Bad Waltersdorf | 2023/09/19 15:15 | Adrian Andreev v Marvin Moeller | 5-7,4-6 |
| Challenger Bad Waltersdorf | 2023/09/18 08:00 | Sandro Kopp v Marvin Moeller | 4-6,7-6,5-7 |
| Challenger Bad Waltersdorf | 2023/09/17 08:00 | Mick Veldheer v Marvin Moeller | 2-6,6-4,2-6 |
| Challenger Szczecin | 2023/09/10 08:30 | Marvin Moeller v Andrew Paulson | 2-6,2-6 |
| Challenger Tulln | 2023/09/05 08:00 | Dalibor Svrcina v Marvin Moeller | 1-6,6-4,6-1 |