| World Championships | 08/19 10:30 | 6 | Jonatan Christie v Ouseph, Rajiv | L | 2-0 | |
| US Open 2019, MS | 07/10 19:55 | 5 | Ouseph, Rajiv v Corvee, Lucas | L | 1-2 | |
| Canada Open | 07/05 22:00 | 3 | Ouseph, Rajiv v Koki Watanabe | L | 0-2 | |
| Canada Open | 07/04 21:00 | 4 | Weng, H. Y. v Ouseph, Rajiv | W | 0-2 | |
| Canada Open | 07/03 21:10 | 5 | Jayaram, Ajay v Ouseph, Rajiv | W | 0-2 | |
| Open de Suisse | 03/13 19:50 | 5 | Sai Praneeth, B. v Ouseph, Rajiv | - | Retired | |
| Open d'Angleterre | 03/06 11:30 | 5 | Tommy Sugiarto v Ouseph, Rajiv | L | 2-0 | |
| Masters d'Espagne | 02/22 14:30 | 3 | Ouseph, Rajiv v Anders Antonsen | L | 0-2 | |
| Masters d'Espagne | 02/21 10:40 | 4 | Saensomboonsuk, Tanongsak v Ouseph, Rajiv | W | 1-2 | |
| Masters d'Espagne | 02/20 16:00 | 5 | Misha Zilberman v Ouseph, Rajiv | W | 1-2 | |
| Giraldilla Int. XD | 02/15 13:30 | - | Ouseph, Rajiv v Kai Schaefer | L | 0-2 | |
| Giraldilla Int. XD | 02/14 13:30 | - | Ouseph, Rajiv v Nhat Nguyen | W | 2-0 | |
| Indonesia Masters XD | 01/16 06:35 | 5 | Kantaphon Wangcharoen v Ouseph, Rajiv | L | 2-0 | |
| Giraldilla Int. XD | 11/24 13:00 | 2 | Ouseph, Rajiv v Liu, H. C. | L | 1-2 | |
| Giraldilla Int. XD | 11/23 19:02 | - | Corvee, Lucas v Ouseph, Rajiv | W | 1-2 | |
| Giraldilla Int. XD | 11/23 18:30 | 3 | Corvee, Lucas v Ouseph, Rajiv | W | 1-2 | |
| Giraldilla Int. XD | 11/23 12:00 | 4 | Kim Bruun v Ouseph, Rajiv | W | 0-2 | |
| Giraldilla Int. XD | 11/22 14:00 | 5 | Ivan Rusev v Ouseph, Rajiv | W | 0-2 | |
| Giraldilla Int. XD | 11/04 15:36 | - | Subhankar Dey v Ouseph, Rajiv | L | 2-0 | |
| Giraldilla Int. XD | 11/04 14:00 | 1 | Subhankar Dey v Ouseph, Rajiv | L | 2-0 | |
| Giraldilla Int. XD | 11/03 14:30 | 2 | Ouseph, Rajiv v Toma Junior Popov | W | 2-1 | |
| Giraldilla Int. XD | 11/02 10:20 | 3 | Ouseph, Rajiv v Mark Caljouw | W | 2-0 | |
| Giraldilla Int. XD | 11/01 14:25 | 4 | Kean Yew Loh v Ouseph, Rajiv | W | 1-2 | |
| Giraldilla Int. XD | 10/31 15:55 | 5 | Ho-Shue, Jason Anthony v Ouseph, Rajiv | W | 1-2 | |
| Open de France | 10/25 17:00 | 4 | Ouseph, Rajiv v Kantaphon Wangcharoen | L | 0-2 | |
| Open de France | 10/23 10:20 | 5 | Ouseph, Rajiv v Liew, Daren | W | 2-0 | |
| Open d'Angleterre | 10/17 11:00 | 5 | Ouseph, Rajiv v Tommy Sugiarto | L | 0-2 | |
| Open d'Angleterre | 08/01 09:00 | 5 | Shi, Y. Q. v Ouseph, Rajiv | L | 2-0 | |
| Open d'Angleterre | 07/30 02:50 | 6 | Durkinjak, Zvonimir v Ouseph, Rajiv | W | 0-2 | |
| Indonesia Masters XD | 07/12 10:05 | 4 | Phetpradab, Khosit v Ouseph, Rajiv | L | 2-0 |