Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF M25 Alkmaar | 2021/06/21 17:30 | Marvin Moeller v Michiel de Krom | 2-6,6-4,10-3 |
| ITF M25 Alkmaar | 2021/06/20 17:00 | Constantin Bittoun Kouzmine v Michiel de Krom | 3-6,3-6 |
| ITF M15 Valldoreix | 2021/05/09 14:00 | Michiel de Krom v Federico Iannaccone | 3-6,2-6 |
| ITF M15 Majadahonda | 2021/05/05 06:55 | Martin Cuevas v Michiel de Krom | 7-5,6-3 |
| ITF M25 Reus | 2021/04/13 10:00 | Yan Bondarevskiy v Michiel de Krom | 6-3,6-3 |
| ITF M25 Reus | 2021/04/12 07:30 | Jose Joaquin M Cisneros v Michiel de Krom | 0-6,6-4,10-12 |
| Challenger Porto | 2021/06/27 12:20 | Yosuke Watanuki v Duarte Vale | 6-2,6-4 |
| FPT Portugal Series | 2020/07/16 15:00 | Joao Monteiro v Duarte Vale | 6-7,7-6,6-3 |
| FPT Portugal Series | 2020/07/15 12:30 | Duarte Vale v Illia Stoliar | 6-2,6-2 |
| FPT Portugal Series | 2020/07/12 15:00 | Duarte Vale v Nuno Borges | 1-6,1-6 |
| FPT Portugal Series | 2020/07/11 16:30 | Luis Faria v Duarte Vale | 5-7,6-3,3-6 |
| FPT Portugal Series | 2020/07/10 12:30 | Tiago Cacao v Duarte Vale | 7-6,7-6 |
| FPT Portugal Series | 2020/07/08 15:30 | Duarte Vale v Henrique Rocha | 6-4,5-1 |
| FPT Portugal Series | 2020/07/04 13:30 | Duarte Vale v Frederico Ferreira Silva | 1-0 |