| Akita Masters 2019, WD | 2019/08/14 04:40 | Hoshi C / Matsuda A v Kawashima M / Saito N | W | 1-2 |
| White Nights WD | 2019/07/14 09:00 | Nakai Y / Ono N v Kawashima M / Saito N | L | 2-1 |
| White Nights WD | 2019/07/13 14:30 | Kawashima M / Saito N v Jakkampudi / S Ram | W | 2-0 |
| White Nights WD | 2019/07/13 09:00 | Kawashima M / Saito N v Akchurina A / Morozova O | W | 2-0 |
| Denmark Int. WD | 2019/05/11 16:00 | Kawashima M / Saito N v Birch C / Smith L | L | 0-2 |
| Denmark Int. WD | 2019/05/11 09:30 | Fruergaard/Thygesen v Kawashima M / Saito N | W | 1-2 |
| Akita Masters 2019, WD | 2019/08/14 06:00 | Iwanaga/Nakanishi v Istarani N K M / Kusumah T O | W | 2-0 |
| Finnish Open WD | 2019/04/06 14:30 | Honda E / Shimizu N v Iwanaga/Nakanishi | L | 2-1 |
| Finnish Open WD | 2019/04/05 19:00 | Pai Y P / Wu T J v Iwanaga/Nakanishi | W | 0-2 |
| Finnish Open WD | 2019/04/05 14:20 | Iwanaga/Nakanishi v Ercetin/Inci | W | 2-0 |