| UTR Pro Tennis Series - Amsterdam | 2021/11/05 12:00 | Teun Rozenberg v Max Houkes | 7-6,2-6,3-6 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/04 09:00 | Nathan De Veer v Max Houkes | 0-6,6-4,6-3 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/03 13:30 | Maxence Broville v Max Houkes | 6-3,6-4 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/01 12:00 | Thorsten Sollie v Max Houkes | 2-6,7-5,0-5 |
| ITF M15 Platja D'Aro | 2021/10/14 09:00 | Max Houkes v Max Alcala Gurri | 6-7,7-5,4-6 |
| ITF M15 Platja D'Aro | 2021/10/13 10:30 | David Jorda Sanchis v Max Houkes | 4-6,4-6 |
| ITF M15 Platja D'Aro | 2021/10/12 08:30 | Max Houkes v Zakhar Trapeznikov | 6-3,6-4 |
| ITF M15 Platja D'Aro | 2021/10/10 11:00 | Max Houkes v Mario Mansilla Diez | 6-3,6-4 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/04 12:00 | Miko Wassermann v Lawrence Bataljin | 6-1,6-3 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/03 09:00 | Miko Wassermann v Jip Van Assendelft | 1-6,4-5 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/02 12:00 | Miko Wassermann v Johann Willems | 2-6,2-6 |
| UTR Pro Tennis Series - Amsterdam | 2021/11/01 13:30 | Miko Wassermann v Guy Den Heijer | 2-6,5-7 |