| Spain Masters - WD | 03/31 09:05 | 1 | Iwanaga/Nakanishi v Kusuma/Pratiwi | W | 2-1 | |
| Spain Masters - WD | 03/30 14:40 | 2 | Iwanaga/Nakanishi v Chang/Yang | W | 2-0 | |
| Spain Masters - WD | 03/29 13:45 | 3 | Iwanaga/Nakanishi v Stoeva/Stoeva | W | 2-1 | |
| Spain Masters - WD | 03/28 16:15 | 4 | Iwanaga/Nakanishi v Huang/Liang | W | 2-0 | |
| Spain Masters - WD | 03/27 15:10 | 5 | Iwanaga/Nakanishi v Buhrova/Kantemyr | W | 2-0 | |
| Swiss Open - WD | 03/22 13:15 | 3 | Ching Hsu/Ching Lin v Iwanaga/Nakanishi | L | 2-1 | |
| Swiss Open - WD | 03/21 11:00 | 4 | Hsin Lee/Teng v Iwanaga/Nakanishi | W | 0-2 | |
| Swiss Open - WD | 03/19 19:05 | 5 | Yang/Chang v Iwanaga/Nakanishi | W | 0-2 | |
| All England Open - WD | 03/14 18:05 | 4 | Iwanaga/Nakanishi v Baek/Lee | L | 0-2 | |
| All England Open - WD | 03/13 18:40 | 5 | Iwanaga/Nakanishi v Panda/Panda | W | 2-0 | |
| French Open - WD | 03/05 15:35 | 5 | Matsumoto/Nagahara v Iwanaga/Nakanishi | L | 2-0 | |
| India Open - WD | 01/18 14:35 | 4 | Iwanaga/Nakanishi v Baek/Lee | L | 0-2 |