| ITF M15 Monastir | 2021/11/08 13:00 | Olivier Rojas v Warren Wood | 2-6,3-6 |
| ITF M15 Monastir | 2021/11/08 08:00 | Olivier Rojas v Gabriele Pennaforti | 6-4,7-6 |
| ITF M15 Monastir | 2021/11/03 10:45 | Christoph Negritu v Olivier Rojas | 7-5,7-6 |
| ITF M15 Monastir | 2021/11/01 14:00 | James McCabe v Olivier Rojas | 6-4,6-3 |
| ITF M25 Eupen | 2021/09/05 07:30 | Tom Gentzsch v Olivier Rojas | 6-3,7-5 |
| ITF M15 Huy | 2021/08/23 16:15 | Olivier Rojas v Maikel De Boes | 6-3,3-6,9-11 |
| ITF M15 Huy | 2021/08/22 15:50 | Olivier Rojas v Kylian Collignon | 6-2,6-2 |
| ITF M25 Koksijde | 2021/08/19 09:35 | Mathieu Perchicot v Olivier Rojas | 5-7,6-2,6-2 |
| 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 Amsterdam | 2021/11/01 09:00 | Ivan Denisov v Michiel de Krom | 3-6,3-5 |
| ITF M15 Almada | 2021/07/07 08:30 | Michiel de Krom v Duarte Vale | 3-6,3-6 |
| ITF M25 The Hague | 2021/06/28 08:45 | Carlos Lopez Montagud v Michiel de Krom | 6-1,6-3 |
| ITF M25 The Hague | 2021/06/27 08:00 | Tom Clavel v Michiel de Krom | 3-6,5-7 |