| Campionati Asiatici DM | 04/10 05:20 | 5 | Yang Lee/Wang v Koga/Saito | L | 2-0 | |
| All England Open DM | 03/14 18:05 | 4 | Koga/Saito v Alfian/Ardianto | L | 1-2 | |
| All England Open DM | 03/13 18:25 | 5 | Koga/Saito v Man/Tee | W | 2-0 | |
| Open di Francia DM | 03/05 09:00 | 5 | Jomkoh/Kedren v Koga/Saito | - | CANC | |
| Masters di Thailandia DM | 02/02 07:15 | 3 | Sukphun/Teeraratsakul v Koga/Saito | L | 2-1 | |
| Masters di Thailandia DM | 02/01 08:30 | 4 | Koga/Saito v Chang/Po | W | 2-0 | |
| Masters di Thailandia DM | 01/30 08:50 | 5 | Koga/Saito v Lin/Su | W | 2-0 | |
| Masters d'Indonesia DM | 01/25 09:55 | 4 | Fikri/Maulana v Koga/Saito | L | 2-0 | |
| Masters d'Indonesia DM | 01/23 13:40 | 5 | Koga/Saito v Lu/Yang | W | 2-1 | |
| Open d'India DM | 01/17 09:30 | 5 | Saito/Koga v Chia/Soh | L | 1-2 | |
| Open di Malaysia DM | 01/10 07:55 | 5 | Koga/Saito v Ahsan/Setiawan | L | 0-2 | |
| Syed Modi India Int. DM | 12/03 12:55 | 1 | Koga/Saito v Choong/Haikal | L | 1-2 |