| Indonesia Masters XD | 2017/11/02 17:35 | Mark Caljouw v Rajiv Ouseph | L | 2-1 |
| Giraldilla Int. XD | 2018/11/01 14:25 | Kean Yew Loh v Rajiv Ouseph | W | 1-2 |
| Giraldilla Int. XD | 2018/10/31 15:55 | Jason Anthony Ho-Shue v Rajiv Ouseph | W | 1-2 |
| French Open | 2018/10/25 17:00 | Rajiv Ouseph v Kantaphon Wangcharoen | L | 0-2 |
| French Open | 2018/10/23 10:20 | Rajiv Ouseph v Daren Liew | W | 2-0 |
| Denmark Open | 2018/10/17 11:00 | Rajiv Ouseph v Tommy Sugiarto | L | 0-2 |
| All England Open | 2018/08/01 09:00 | Yuqi Shi v Rajiv Ouseph | L | 2-0 |
| All England Open | 2018/07/30 02:50 | Zvonimir Durkinjak v Rajiv Ouseph | W | 0-2 |
| Thailand Open | 2018/07/12 10:05 | Khosit Phetpradab v Rajiv Ouseph | L | 2-0 |
| Giraldilla Int. XD | 2018/11/01 14:50 | Feixiang Sun v Mark Caljouw | W | 0-2 |
| Giraldilla Int. XD | 2018/10/31 16:20 | Kai Schaefer v Mark Caljouw | W | 0-2 |
| French Open | 2018/10/23 10:40 | Mark Caljouw v Hans-Kristian Vittinghus | L | 1-2 |
| Denmark Open | 2018/10/17 16:00 | Anders Antonsen v Mark Caljouw | L | 2-0 |
| Dutch Open | 2018/10/13 15:30 | Mark Caljouw v Sourabh Verma | L | 0-2 |
| Dutch Open | 2018/10/12 16:30 | Mark Caljouw v Joo Ven Soong | W | 2-0 |
| Dutch Open | 2018/10/11 16:25 | Mark Caljouw v B.R. Sankeerth | W | 2-0 |
| Dutch Open | 2018/10/10 13:55 | Mark Caljouw v Jacob Nilsson | W | 2-0 |