Estádio: Court 14 Round: 27 Ground: Clay
| ITF - M15 Eindhoven | 2023/08/02 13:50 | Sander Jong v Mees Rottgering | 7-5,6-2 |
| ITF - M15 Eindhoven | 2023/08/01 10:30 | Sander Jong v Dax Donders | 6-3,6-3 |
| ITF - M15 Metzingen | 2023/07/29 11:30 | Sander Jong v Nicola Kuhn | 3-6,3-6 |
| ITF - M15 Metzingen | 2023/07/28 10:50 | Kai Lemstra v Sander Jong | 6-3,0-6,2-6 |
| ITF - M15 Metzingen | 2023/07/27 11:00 | Giuseppe La Vela v Sander Jong | 1-6,7-6,5-7 |
| ITF - M15 Metzingen | 2023/07/26 12:30 | John Sperle v Sander Jong | 2-6,7-5,2-6 |
| Challenger - Amersfoort | 2023/07/17 16:45 | Rudolf Molleker v Sander Jong | 6-4,7-6 |
| ITF - M25 Haia | 2023/07/07 12:35 | Sander Jong v Deney Wassermann | 3-6,6-7 |
| ITF - M15 Eindhoven | 2023/08/02 14:00 | Christian Sigsgaard v Tom Gentzsch | 6-2,4-6,3-6 |
| ITF - M15 Eindhoven | 2023/08/01 11:05 | Maciej Rajski v Tom Gentzsch | 4-6,6-4,3-6 |
| ITF - M15 Metzingen | 2023/07/25 11:00 | Tom Gentzsch v Gian Luca Tanner | 2-6,4-6 |
| ITF - M25 Kassel | 2023/07/12 11:35 | Tom Gentzsch v Aldin Setkic | 4-6,2-6 |
| ITF - M25 Marburgo | 2023/07/06 10:35 | Alex Rybakov v Tom Gentzsch | 6-7,6-3,6-2 |
| ITF - M15 Kamen | 2023/07/01 12:40 | Hynek Barton v Tom Gentzsch | 7-6,7-5 |
| ITF - M15 Kamen | 2023/06/29 08:50 | Tom Gentzsch v Marc Majdandzic | 6-3,4-6,7-6 |
| ITF - M15 Kamen | 2023/06/27 09:55 | Tom Gentzsch v Illya Beloborodko | 6-3,6-4 |