| SaarLorLux Open | 2020/10/29 15:00 | Nhat Nguyen v Mark Caljouw | L | 1-2 |
| Kharkiv Int. | 2019/09/07 13:20 | Mark Caljouw v Nhat Nguyen | L | 2-1 |
| Orleans Masters | 2019/03/22 16:30 | Nhat Nguyen v Mark Caljouw | L | 0-2 |
| All England Open | 2021/03/17 13:30 | Srikanth Kidambi v Nhat Nguyen | W | 1-2 |
| Swiss Open | 2021/03/03 12:45 | Khosit Phetpradab v Nhat Nguyen | L | 2-1 |
| SaarLorLux Open | 2020/10/29 15:00 | Nhat Nguyen v Mark Caljouw | L | 1-2 |
| SaarLorLux Open | 2020/10/28 18:30 | Arnaud Merkle v Nhat Nguyen | W | 1-2 |
| Denmark Open | 2020/10/15 10:30 | Nhat Nguyen v Tien Chen Chou | L | 0-2 |
| Denmark Open | 2020/10/14 13:40 | Pablo Abian v Nhat Nguyen | W | 0-2 |
| Spain Masters | 2020/02/20 15:55 | Kunlavut Vitidsarn v Nhat Nguyen | L | 2-0 |
| Spain Masters | 2020/02/19 14:20 | Felix Burestedt v Nhat Nguyen | W | 0-2 |
| All England Open | 2021/03/17 14:30 | Mark Caljouw v Khosit Phetpradab | W | 2-0 |
| Swiss Open | 2021/03/04 09:35 | Kantaphon Wangcharoen v Mark Caljouw | L | 2-0 |
| Swiss Open | 2021/03/03 08:40 | Mark Caljouw v H.S. Prannoy | W | 2-1 |
| European Team Championships | 2021/02/17 11:00 | Harry Huang v Mark Caljouw | W | 0-2 |
| European Team Championships | 2021/02/16 11:00 | Toma Junior Popov v Mark Caljouw | W | 1-2 |
| Thailand Open | 2021/01/19 07:25 | Mark Caljouw v Cheuk Yiu Lee | L | 1-2 |
| Thailand Open | 2021/01/13 04:30 | Mark Caljouw v Ka Long Angus Ng | L | 0-2 |
| Euro Mixed Team Champs | 2020/12/12 10:30 | Mark Caljouw v Jan Louda | W | 2-0 |