Stadium: Yonex Court Round: 27 Ground: Clay
| Challenger Meerbusch MD | 2021/08/11 15:30 | Ajdukovic/Fatic v Merino/Mochizuki | 6-4,6-1 |
| Challenger Iasi MD | 2021/07/15 14:05 | Luz O / Meligeni Rodrigues Alves F v Ajdukovic/Fatic | 6-2,6-4 |
| Challenger Iasi MD | 2021/07/14 08:00 | Coman/Dancu v Ajdukovic/Fatic | 1-6,6-7 |
| Challenger Forli MD | 2021/06/15 15:50 | Ajdukovic/Fatic v Fanselow/Gerch | 1-6,6-3,2-10 |
| Challenger Meerbusch MD | 2021/08/11 09:30 | de Jong J / Stevens B v Begemann A / Olivetti A | 6-4,7-5 |
| Challenger Amersfoort MD | 2021/07/13 12:50 | de Jong J / Stevens B v De Jonge/Ouden | 4-6,6-7 |
| ITF M25 The Hague MD | 2021/07/03 12:55 | de Jong J / Stevens B v Brouwer G / Sels J | 6-3,6-4 |
| ITF M25 The Hague MD | 2021/07/02 15:50 | de Jong J / Stevens B v Nijboer/Veldheer | 7-6,6-2 |
| ITF M25 The Hague MD | 2021/07/01 15:15 | de Jong J / Stevens B v Barranco Cosano/Lopez Montagud | 6-4,7-6 |
| ITF M25 The Hague MD | 2021/06/29 11:05 | de Jong J / Stevens B v Wehnelt/Zahraj | 6-2,6-3 |
| ITF M25 Klosters MD | 2020/09/17 13:05 | de Jong J / Stevens B v Oberleitner/Zahraj | 6-7,0-6 |
| ITF - M25 Sunderland - Doubles Hommes | 2020/02/29 13:35 | de Jong J / Stevens B v Walkow S / Zielinski J | 4-6,4-6 |