| ITF M15 Oldenzaal | 2019/08/16 10:40 | Amadatus Admiraal v Michiel de Krom | 2-6,7-6,7-5 |
| UTR Pro Tennis Series Amsterdam | 2021/12/09 07:00 | Amadatus Admiraal v Aloys J W Van Baal | 6-4,6-6 |
| UTR Pro Tennis Series Amsterdam | 2021/12/08 09:30 | Amadatus Admiraal v Denys Puzanof | 6-0,5-0 |
| 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 | Amadatus Admiraal v Rik Muller | 7-6,5-2 |
| UTR Pro Tennis Series Amsterdam | 2021/11/05 13:30 | Amadatus Admiraal v Benjamin Dhoe | 3-6,3-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/04 13:30 | Amadatus Admiraal v Mikhail Minakov | 3-6,4-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/03 12:00 | Tom Clavel v Amadatus Admiraal | 6-3,6-7,2-5 |
| UTR Pro Tennis Series Amsterdam | 2021/11/02 13:30 | Sem Verbeek v Amadatus Admiraal | 6-2,6-2 |
| UTR Pro Tennis Series Amsterdam | 2021/12/10 08:30 | Michiel de Krom v Max Van Nunen | 6-1,6-1 |
| UTR Pro Tennis Series Amsterdam | 2021/12/08 10:00 | Michiel de Krom v Guy Den Heijer | 3-6,3-5 |
| UTR Pro Tennis Series Amsterdam | 2021/12/07 08:30 | Michiel de Krom v Rob Van Den Berg | 5-7,6-3,5-2 |
| UTR Pro Tennis Series Amsterdam | 2021/12/06 07:00 | Jip Van Assendelft v Michiel de Krom | 2-6,6-2,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/11/28 09:30 | Michiel de Krom v Vlad Cristian Breazu | 6-1,4-6,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/11/27 11:00 | Michiel de Krom v Alvaro Bueno Gil | 6-4,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/11/26 09:30 | Michiel de Krom v Volodymyr Uzhylovskyi | 6-0,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/11/25 14:30 | Michiel de Krom v Thomas Laurent | 3-6,3-5 |