| Open du Luxembourg - Qualif. | 05/02 13:30 | - | Jia Wei Joel Koh v Dennis Koppen | L | 1-2 | |
| China Masters | 03/20 01:00 | 6 | Kai An Wu v Jia Wei Joel Koh | L | 2-1 | |
| Open de Suède | 01/19 20:00 | - | Andi Fadel Muhammad v Jia Wei Joel Koh | L | 2-0 | |
| Open de Suède | 01/19 08:20 | - | Joel König v Jia Wei Joel Koh | W | 0-2 | |
| Estonie Int. - | 01/12 14:00 | - | Mads Juel Moller v Jia Wei Joel Koh | D | 1-1 | |
| Estonie Int. - | 01/12 09:55 | - | Jia Wei Joel Koh v Markus Barth | W | 2-1 | |
| KL Masters | 11/02 05:45 | 4 | Jason Gunawan v Jia Wei Joel Koh | L | 2-0 | |
| KL Masters | 11/01 05:15 | 5 | Rozain, Faiz v Jia Wei Joel Koh | W | 1-2 | |
| KL Masters | 11/01 00:45 | 6 | Yu-Han Hsu v Jia Wei Joel Koh | - | Walkover | |
| Vietnam Open | 09/13 13:20 | 5 | Jia Heng Jason Teh v Jia Wei Joel Koh | L | 2-0 | |
| Indonesia Masters | 09/06 08:25 | 5 | Kiran George v Jia Wei Joel Koh | L | 2-0 | |
| SEA Games | 05/13 05:30 | - | Jia Wei Joel Koh v Jun Hao Leong | L | 0-2 | |
| Thailand Masters Qual. | 01/31 04:00 | - | Jia Wei Joel Koh v Hyeok Jin Jeon | L | 0-2 | |
| Estonie Int. - | 01/13 17:30 | - | Yu Kai Huang v Jia Wei Joel Koh | L | 2-0 | |
| Estonie Int. - | 01/13 10:20 | - | Jia Wei Joel Koh v Kai Schaefer | W | 2-1 | |
| Nantes Int. Qual | 06/23 07:40 | - | Jia Wei Joel Koh v Fabian Roth | L | 0-2 | |
| Denmark Masters Qual | 06/09 12:00 | - | Jia Wei Joel Koh v Hyeok Jin Jeon | L | 1-2 | |
| Denmark Masters Qual | 06/09 07:00 | - | Bharadwaj, B M R v Jia Wei Joel Koh | - | Walkover | |
| Italian Int. Qual | 06/02 13:05 | - | Jia Wei Joel Koh v Yeoh, Seng Zoe | L | 0-2 | |
| Italian Int. Qual | 06/02 07:10 | - | Mekala, Kiran Kumar v Jia Wei Joel Koh | W | 0-2 | |
| Thomas Cup | 05/11 08:20 | - | Panitchaphon Teeraratsakul v Jia Wei Joel Koh | L | 2-1 | |
| Thomas Cup | 05/09 13:20 | - | Yun Gyu Lee v Jia Wei Joel Koh | W | 1-2 | |
| Thomas Cup | 05/08 08:20 | - | Shesar Hiren Rhustavito v Jia Wei Joel Koh | L | 2-0 | |
| Dutch Int. - | 04/14 11:20 | - | Jia Wei Joel Koh v Magnus Johannesen | L | 1-2 | |
| Dutch Int. - | 04/14 08:40 | - | Jia Wei Joel Koh v Stoynov, Ilyan | W | 2-0 | |
| International du Portugal | 03/12 17:00 | - | Magnus Johannesen v Jia Wei Joel Koh | L | 2-0 | |
| International du Portugal | 03/11 15:00 | - | Torjussen, J. v Jia Wei Joel Koh | W | 1-2 | |
| International du Portugal Qualif. | 03/11 09:40 | - | Jia Wei Joel Koh v Simon Baron-Vezilier | W | 2-0 | |
| International du Portugal Qualif. | 03/10 17:00 | - | Mads Juel Moller v Jia Wei Joel Koh | W | 0-2 | |
| International du Portugal Qualif. | 03/10 11:00 | - | Sacha Leveque v Jia Wei Joel Koh | W | 0-2 |