| 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 |
| UTR Pro Tennis Series Barcelona | 2021/11/25 08:00 | Michiel de Krom v Euan Mcintosh | 6-0,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/11/22 09:30 | Michiel de Krom v Sergio Redondo | 6-3,5-3 |
| UTR Pro Tennis Series Amsterdam | 2021/11/06 13:30 | Maxence Broville v Michiel de Krom | 6-4,5-2 |
| UTR Pro Tennis Series Amsterdam | 2021/11/05 12:00 | Michiel de Krom v Deney Wassermann | 2-6,3-6 |
| UTR Pro Tennis Series Amsterdam | 2021/11/03 10:30 | Michiel de Krom v Rik Muller | 6-4,5-1 |
| UTR Pro Tennis Series Amsterdam | 2021/11/02 10:30 | Michiel de Krom v Edison Ambarzumjan | 6-1,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/11/26 08:00 | Alvaro Bueno Gil v Anthony Genov | 6-7,6-0,6-7 |
| UTR Pro Tennis Series Barcelona | 2021/11/25 16:00 | Alvaro Bueno Gil v Marat Deviatiarov | 0-6,4-1 |
| UTR Pro Tennis Series Barcelona | 2021/11/23 10:30 | Alvaro Bueno Gil v Fermin Calvo Barcelo | 6-4,6-1 |
| UTR Pro Tennis Series Barcelona | 2021/11/22 08:00 | Alvaro Bueno Gil v Ignasi De Rueda De Genover | 6-4,5-4 |
| UTR Pro Tennis Series Barcelona | 2021/11/14 08:00 | Alvaro Bueno Gil v Danylo Veremeychuk | 6-1,6-2 |
| UTR Pro Tennis Series Barcelona | 2021/11/13 10:00 | Aleksandre Metreveli v Alvaro Bueno Gil | 6-4,4-3 |
| UTR Pro Tennis Series Barcelona | 2021/11/12 14:30 | Alvaro Bueno Gil v Tilen Zitnik | 6-4,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/11/11 15:30 | Alvaro Bueno Gil v Andrey Chepelev | 3-6,4-5 |