Stadium: Court 8 Round: 28 Ground: Clay
| ITF M15 Alkmaar | 2023/06/30 14:00 | Karl Friberg v von Der Schulenburg, Jeffrey | 6-4,6-7,3-6 |
| ITF M15 Alkmaar | 2023/06/29 12:05 | von Der Schulenburg, Jeffrey v Guy Den Ouden | 6-4,3-6,7-5 |
| ITF M15 Alkmaar | 2023/06/28 14:20 | von Der Schulenburg, Jeffrey v Lalami Laaroussi, Younes | 7-5,7-5 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/25 12:00 | Sander Jong v von Der Schulenburg, Jeffrey | 6-1,6-0 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/23 16:30 | Marcel Zielinski v von Der Schulenburg, Jeffrey | 6-7,6-2,1-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/22 11:10 | Tom Gentzsch v von Der Schulenburg, Jeffrey | 4-6,3-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/19 09:30 | von Der Schulenburg, Jeffrey v Jim Hendrikx | 6-1,6-4 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/18 12:00 | von Der Schulenburg, Jeffrey v Ruben Hartig | 6-1,6-0 |
| ITF M15 Alkmaar | 2023/06/30 12:10 | Brian Bozemoj v Elmer Moller | 2-6,4-6 |
| ITF M15 Alkmaar | 2023/06/29 12:25 | Mees Rottgering v Elmer Moller | 2-6,3-6 |
| ITF M15 Alkmaar | 2023/06/28 14:05 | Stijn Pel v Elmer Moller | 7-6,2-6,1-6 |
| ITF M25 Risskov/Aarhus | 2023/06/18 08:00 | Leo Borg v Elmer Moller | 3-6,3-6 |
| ITF M25 Risskov/Aarhus | 2023/06/17 11:40 | Ergi Kirkin v Elmer Moller | 5-7,4-6 |
| ITF M25 Risskov/Aarhus | 2023/06/15 13:05 | Korsgaard, Henrik Heise v Elmer Moller | 2-6,1-6 |
| ITF M25 Risskov/Aarhus | 2023/06/13 10:10 | Oren Vasser v Elmer Moller | 0-6,2-6 |
| ITF M15 Constanta | 2023/06/04 08:00 | Elmer Moller v Florent Bax | 3-6,6-0,6-1 |