Stadium: Court 1 Round: 26 Ground: Clay
| Challenger Meerbusch MD | 2021/08/13 09:00 | de Jong/Stevens v Walkow/Zielinski | 2-6,7-6,9-11 |
| Challenger Meerbusch MD | 2021/08/12 11:30 | Ajdukovic/Fatic v de Jong/Stevens | 0-6,2-6 |
| Challenger Meerbusch MD | 2021/08/11 09:30 | de Jong/Stevens v Begemann/Olivetti | 6-4,7-5 |
| Challenger Amersfoort MD | 2021/07/13 12:50 | de Jong/Stevens v De Jonge/Ouden | 4-6,6-7 |
| ITF M25 The Hague MD | 2021/07/03 12:55 | de Jong/Stevens v Brouwer/Sels | 6-3,6-4 |
| ITF M25 The Hague MD | 2021/07/02 15:50 | de Jong/Stevens v Nijboer/Veldheer | 7-6,6-2 |
| ITF M25 The Hague MD | 2021/07/01 15:15 | de Jong/Stevens v Barranco Cosano/Lopez Montagud | 6-4,7-6 |
| ITF M25 The Hague MD | 2021/06/29 11:05 | de Jong/Stevens v Wehnelt/Zahraj | 6-2,6-3 |