North Macedonia: M15 Skopje 2 - Doubles - Main |
| Quarter-finals | Houkes M./Pontjodikromo S. | Ivanovski K./Jotovski T. | WO. | detalhes | 10.06.2021 |
| 1/8-finals | Houkes M./Pontjodikromo S. | Martin T./Tepavac M. | 1:0 RET. (6:3, 3:1) | detalhes | 09.06.2021 |
North Macedonia: M15 Skopje - Doubles - Main |
| Final | Damm M./Stanek R. | Houkes M./Pontjodikromo S. | 2:0 (6:2, 7:65) | detalhes | 05.06.2021 |
| Semi-finals | Ionel N. D./Yamanaka T. | Houkes M./Pontjodikromo S. | 1:2 (7:5, 2:6, 9:11) | detalhes | 04.06.2021 |
| Quarter-finals | Sorrentino L./Weis A. | Houkes M./Pontjodikromo S. | 0:2 (4:6, 4:6) | detalhes | 03.06.2021 |
| 1/8-finals | Grabul D./Jotovski T. | Houkes M./Pontjodikromo S. | 0:2 (2:6, 3:6) | detalhes | 01.06.2021 |
Turkey: M15 Antalya 11 - Doubles - Main |
| Quarter-finals | Hong S. C./Lee D. H. | Houkes M./Pontjodikromo S. | 2:0 (6:4, 6:0) | detalhes | 18.03.2021 |
| 1/8-finals | Erel Y./Kirci K. | Houkes M./Pontjodikromo S. | 0:2 (3:6, 62:7) | detalhes | 16.03.2021 |
Turkey: M15 Antalya 8 - Doubles - Main |
| Final | Houkes M./Pontjodikromo S. | Chung Y./Ovcharenko O. | 2:0 (7:5, 6:1) | detalhes | 27.02.2021 |
| Semi-finals | Houkes M./Pontjodikromo S. | Pucinelli de Almeida M./Reis Da Silva J. | 2:1 (6:3, 5:7, 10:8) | detalhes | 26.02.2021 |
| Quarter-finals | Kodat T./Nouza P. | Houkes M./Pontjodikromo S. | WO. | detalhes | 25.02.2021 |
| 1/8-finals | Houkes M./Pontjodikromo S. | Pichler D./Prechtel S. | 2:0 (6:3, 7:5) | detalhes | 24.02.2021 |
Turkey: M15 Antalya 7 - Doubles - Main |
| 1/8-finals | Houkes M./Pontjodikromo S. | Cachin P./Olivieri G. A. | 1:2 (6:3, 4:6, 9:11) | detalhes | 17.02.2021 |
Turkey: M15 Antalya 5 - Doubles - Main |
| 1/8-finals | Houkes M./Pontjodikromo S. | Berrettini J./Brancaccio R. | 0:2 (2:6, 64:7) | detalhes | 04.02.2021 |
Netherlands: M15 Alkmaar - Doubles - Main |
| Final | Hermans M./Verbeek S. | Houkes M./Pontjodikromo S. | 1:2 (1:6, 7:5, 8:10) | detalhes | 29.08.2020 |
| Semi-finals | Houkes M./Pontjodikromo S. | Strombachs R./Zukas M. | 2:0 (6:1, 6:4) | detalhes | 28.08.2020 |
| Quarter-finals | Dijkhuizen M./Wassermann D. | Houkes M./Pontjodikromo S. | 1:2 (6:4, 2:6, 5:10) | detalhes | 27.08.2020 |
| 1/8-finals | Houkes M./Pontjodikromo S. | Negritu Ch./Schmitz C. | 2:1 (6:4, 5:7, 10:7) | detalhes | 26.08.2020 |