Stadium: Court 6 Round: 26 Ground: Clay
| ITF M15 Allershausen | 2023/08/30 10:00 | Tom Gentzsch v David Fix | 6-2,6-4 |
| ITF M15 Forbach | 2023/09/29 13:30 | Volodymyr Iakubenko v Tom Gentzsch | 7-6,6-7,6-7 |
| ITF M15 Forbach | 2023/09/28 16:00 | Boris Fassbender v Tom Gentzsch | 6-7,6-7 |
| ITF M15 Forbach | 2023/09/27 08:00 | Niklas Schell v Tom Gentzsch | 6-7,6-7 |
| ITF M15 Buschhausen | 2023/09/14 11:45 | Marc Majdandzic v Tom Gentzsch | 3-6,6-4,6-4 |
| ITF M15 Buschhausen | 2023/09/13 14:45 | Jakob Schnaitter v Tom Gentzsch | 4-6,6-4,3-6 |
| ITF M15 Koszalin | 2023/09/08 15:00 | Dominik Kellovsky v Tom Gentzsch | 6-2,5-7,6-4 |
| ITF M15 Koszalin | 2023/09/07 16:00 | Oskar Grzegorzewski v Tom Gentzsch | 3-6,5-7 |
| ITF M15 Koszalin | 2023/09/06 14:05 | Maciej Matuszczyk v Tom Gentzsch | 5-7,7-5,2-6 |
| ITF M15 Buschhausen | 2023/09/12 11:40 | Niels Visker v David Fix | 6-1,6-3 |
| ITF M15 Haren | 2023/09/07 10:50 | David Fix v Sander Jong | 4-6,1-6 |
| ITF M15 Haren | 2023/09/05 11:00 | David Fix v Andrea Gola | 6-3,6-4 |
| ITF M15 Allershausen | 2023/08/30 10:00 | Tom Gentzsch v David Fix | 6-2,6-4 |
| Challenger Augsburg | 2023/08/20 11:25 | Tristan Lamasine v David Fix | 7-6,6-4 |
| ITF M15 Uberlingen | 2023/08/19 12:00 | Max Hans Rehberg v David Fix | 6-2,6-3 |
| ITF M15 Uberlingen | 2023/08/18 15:30 | David Fix v Fnu Nidunjianzan | 4-6,6-4,6-3 |
| ITF M15 Uberlingen | 2023/08/17 07:55 | Hazem Naw v David Fix | 6-7,4-6 |