| UTR Pro Tennis Series Amsterdam | 2021/12/11 07:00 | Aloys J W Van Baal v Niklas Koch | 6-4,6-4 |
| UTR Pro Tennis Series Amsterdam | 2021/12/10 08:30 | Deney Wassermann v Niklas Koch | 6-2,6-3 |
| UTR Pro Tennis Series Amsterdam | 2021/12/09 11:55 | Nathan De Veer v Niklas Koch | 6-1,6-5 |
| UTR Pro Tennis Series Amsterdam | 2021/12/07 10:00 | Yan Sabanin v Niklas Koch | 3-6,3-5 |
| UTR Pro Tennis Series Amsterdam | 2021/12/06 07:00 | Niklas Koch v Miko Wassermann | 6-4,6-7,3-6 |
| ITF M25 Eupen | 2021/09/06 11:00 | Buvaysar Gadamauri v Niklas Koch | 6-2,6-2 |
| ITF M25 Eupen | 2021/09/05 12:00 | Niklas Koch v Arslanbek Temirhanov | 6-1,6-2 |
| ITF M15 Manacor | 2020/01/12 11:30 | Billy Harris v Niklas Koch | 6-1,6-1 |
| ITF M15 Antalya | 2022/02/08 06:55 | Max Houkes v Taiyo Yamanaka | 2-6,6-1,7-10 |
| ITF M15 Antalya | 2022/02/07 10:40 | Max Houkes v Gheorghe Claudiu Schinteie | 6-1,6-3 |
| ITF M15 Antalya | 2022/02/06 07:00 | Max Houkes v Igor Shrolik | 7-5,4-6,10-3 |
| ITF M15 Antalya | 2022/02/03 07:00 | Seong Chan Hong v Max Houkes | 6-3,6-4 |
| TennisDirect NK Tennis | 2021/12/16 13:30 | Max Houkes v Gijs Brouwer | 2-6,3-5 |
| UTR Pro Tennis Series Amsterdam | 2021/12/12 08:30 | Guy Den Heijer v Max Houkes | 6-3,1-6,6-6 |
| UTR Pro Tennis Series Amsterdam | 2021/12/11 10:00 | Tibo Colson v Max Houkes | 4-6,2-5 |
| UTR Pro Tennis Series Amsterdam | 2021/12/10 10:00 | Roland Stuurman v Max Houkes | 2-6,1-5 |