Stadium: Court 2 Round: 44 Ground: Clay
| ITF M15 Alkmaar | 2023/06/28 16:20 | Lodewijk Weststrate v Mees Rottgering | 6-7,6-7 |
| ITF M15 Saarlouis | 2023/06/23 12:30 | Lodewijk Weststrate v Sander Jong | 3-6,7-5,2-6 |
| ITF M15 Saarlouis | 2023/06/22 11:30 | Lodewijk Weststrate v Guy Den Heijer | 7-6,6-4 |
| ITF M15 Saarlouis | 2023/06/21 17:05 | Amr Asrawy v Lodewijk Weststrate | 5-7,1-6 |
| ITF M15 Saarlouis | 2023/06/19 09:30 | Jurriaan Bol v Lodewijk Weststrate | 0-6,5-7 |
| ITF M15 Saarlouis | 2023/06/18 09:00 | Johann Lars v Lodewijk Weststrate | 4-6,2-6 |
| ITF M15 Duffel | 2023/06/12 10:00 | Adrian Oetzbach v Lodewijk Weststrate | 7-5,1-6,12-10 |
| ITF M15 Duffel | 2023/06/11 11:00 | Aaron James Williams v Lodewijk Weststrate | 2-6,7-6,5-10 |
| ITF M15 Duffel | 2023/06/11 11:00 | Felix Einig v David Quayle | 5-7,3-6 |
| ITF M15 Meerbusch | 2023/04/23 08:00 | Felix Einig v Zak Talic | 5-7,5-7 |
| ITF M15 Lons-le-Saunier | 2023/04/02 15:20 | Hugo Pontico v Felix Einig | 6-1,6-4 |
| ITF M15 Heraklion | 2023/03/20 09:00 | Jonas Trinker v Felix Einig | 7-5,6-2 |
| ITF M25 Heraklion | 2023/03/13 08:00 | Elgin Khoeblal v Felix Einig | 6-2,6-7,10-7 |
| ITF M25 Heraklion | 2023/03/12 07:00 | Niv Zuckerman v Felix Einig | 4-6,1-6 |
| ITF M25 Manacor | 2023/01/16 14:00 | Felix Einig v Pablo Trochu | 1-6,2-6 |
| ITF M25 Manacor | 2023/01/10 12:00 | Felix Einig v Imran Sibille | 6-2,6-7,11-13 |