Estadio: Displaymax Court Round: 25 Ground: Clay
| ITF M15 Ueberlingen | 2023/08/15 08:00 | Milan Welte v Vincent Marysko | 6-4,6-1 |
| ITF M15 Ueberlingen | 2023/08/14 08:00 | Milan Welte v Andre Steinbach | 6-2,6-1 |
| ITF M25 Wetzlar | 2023/08/04 11:10 | Sebastian Fanselow v Milan Welte | 7-5,4-6,6-3 |
| ITF M25 Wetzlar | 2023/08/04 08:00 | Milan Welte v Nicolas Zanellato | 6-3,7-5 |
| ITF M25 Wetzlar | 2023/08/03 07:55 | Milan Welte v Facundo Yunis | 7-5,6-3 |
| ITF M25 Kassel | 2023/07/13 16:30 | Aldin Setkic v Milan Welte | 6-4,7-5 |
| ITF M25 Kassel | 2023/07/12 09:55 | Milan Welte v Robert Strombachs | 6-3,6-2 |
| ITF M25 Kassel | 2023/07/11 11:10 | Milan Welte v Stepan Mruzek | 6-2,6-1 |
| ITF M15 Eupen | 2023/08/11 16:30 | Luca Wiedenmann v Marc Majdandzic | 4-6,7-5,3-6 |
| ITF M15 Eupen | 2023/08/10 09:00 | Luca Wiedenmann v Maik Steiner | 3-6,6-3,6-1 |
| ITF M15 Eupen | 2023/08/09 10:00 | Luca Wiedenmann v Pietro Marino | 6-2,7-5 |
| ITF M25 Wetzlar | 2023/08/04 08:00 | Luca Wiedenmann v Nicola Kuhn | 4-6,4-6 |
| ITF M25 Wetzlar | 2023/08/03 09:15 | Luca Wiedenmann v Max Schoenhaus | 7-5,6-1 |
| ITF M25 Uriage | 2023/07/14 09:20 | Marvin Moeller v Luca Wiedenmann | 7-6,7-6 |
| ITF M25 Uriage | 2023/07/13 11:15 | Luca Wiedenmann v Valerio Aboian | 7-5,6-1 |
| ITF M25 Uriage | 2023/07/11 08:00 | Leo Raquillet v Luca Wiedenmann | 1-6,6-7 |