Stadium: Pista 3 Round: 14 Ground: Clay
| Challenger Oeiras | 2022/03/27 13:20 | Ergi Kirkin v Ryan Nijboer | 6-0,7-5 |
| ITF M15 Sharm El Sheikh | 2022/03/23 12:50 | Ryan Nijboer v Petr Bar Biryukov | 2-6,5-7 |
| ITF M15 Sharm El Sheikh | 2022/03/16 07:30 | Ryan Nijboer v Federico Agustin Gomez | 1-6,3-6 |
| ITF M15 Monastir | 2022/02/17 10:35 | Ryan Nijboer v Sebastian Gima | 5-7,5-7 |
| ITF M15 Monastir | 2022/02/16 11:40 | Ryan Nijboer v Valentin De Carvalho | 6-0,6-0 |
| ITF M15 Monastir | 2022/02/09 12:40 | Ryan Nijboer v Diego A B Sanchez | 7-5,0-6,3-6 |
| ITF M15 Villena | 2022/02/01 09:30 | Pavel Nejedly v Ryan Nijboer | 6-3,6-4 |
| UTR Pro Tennis Series - Amsterdam | 2021/12/08 10:00 | Yan Sabanin v Ryan Nijboer | 3-1 |
| Challenger Marbella | 2022/03/28 08:00 | Javier Barranco Cosano v Christopher Heyman | 6-3,6-4 |
| Challenger Marbella | 2022/03/27 12:20 | Joshua Schaefer v Christopher Heyman | 0-6,1-6 |
| Challenger Lille | 2022/03/20 18:25 | Christopher Heyman v Michael Geerts | 2-6,1-6 |
| ITF M25 Faro | 2022/03/02 10:00 | Jorge Martinez Martinez v Christopher Heyman | 6-7,6-3,6-2 |
| ITF M25 Vale Do Lobo | 2022/02/26 12:15 | Laurent Lokoli v Christopher Heyman | 6-2,6-4 |
| ITF M25 Vale Do Lobo | 2022/02/25 10:30 | Edan Leshem v Christopher Heyman | 6-0,2-6,0-6 |
| ITF M25 Vale Do Lobo | 2022/02/24 12:30 | Kenny de Schepper v Christopher Heyman | 2-6,3-6 |
| ITF M25 Vale Do Lobo | 2022/02/23 11:45 | Vilius Gaubas v Christopher Heyman | 3-6,3-6 |