| ITF M15 Heraklion | 2021/11/16 07:00 | Max Houkes v Kai Lemstra | 4-6,6-7 |
| ITF M15 Heraklion | 2021/11/15 08:00 | Max Houkes v Nikolas Moceanu | 6-0,6-4 |
| ITF M15 Heraklion | 2021/11/14 07:00 | Max Houkes v Stephanos Schinas | 6-2,6-4 |
| ITF M15 Heraklion | 2021/11/10 07:00 | Guy Den Heijer v Max Houkes | 7-6,6-3 |
| UTR Pro Tennis Series Amsterdam | 2021/11/07 12:00 | Max Houkes v Amadatus Admiraal | 6-0,6-4 |
| UTR Pro Tennis Series Amsterdam | 2021/11/06 10:30 | Max Houkes v Miko Wassermann | 6-4,6-3 |
| 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 |
| ITF M15 Sharm El Sheikh | 2021/10/31 08:00 | Sebastian Sorger v Jesse De Jager | 6-4,3-6,11-9 |
| ITF M15 Sharm El Sheikh | 2021/10/24 12:00 | Jesse De Jager v Emiliano Maggioli | 3-6,5-7 |
| ITF M25 Ricany | 2021/08/29 09:00 | Jesse De Jager v Noel Larwig | 3-6,6-3,4-10 |
| ITF M25 Poznan | 2021/08/24 08:00 | Harry Wendelken v Jesse De Jager | 6-1,6-3 |
| ITF M25 Poznan | 2021/08/22 08:00 | Jesse De Jager v Ioannis Stamoulos | 6-3,6-0 |
| ITF M15 Lodz | 2021/08/16 09:30 | Alan Bojarski v Jesse De Jager | 7-5,7-5 |
| ITF M15 Lodz | 2021/08/15 09:30 | Jesse De Jager v Sean Hess | 6-4,3-6,10-7 |
| ITF M25 Pitesti | 2021/08/02 08:30 | Ray Ho v Jesse De Jager | 6-2,4-6,10-5 |