| Denmark Int. WD | 2019/05/10 16:20 | Ozaki/Watanabe v Delrue/Palermo | W | 2-0 |
| Denmark Int. WD | 2019/05/10 11:00 | Magelund/Ravn v Ozaki/Watanabe | W | 0-2 |
| Brazil Int. - Damdubbel | 2019/05/04 14:30 | Honderich/Tsai v Piek/Seinen | L | 2-0 |
| Brazil Int. - Damdubbel | 2019/05/03 14:00 | Lee/Lee v Piek/Seinen | W | 0-2 |
| All England Open | 2019/03/06 13:30 | Li/Zheng v Piek/Seinen | L | 2-0 |
| German Open - Damdubbel | 2019/02/28 18:00 | Du/Li v Piek/Seinen | L | 2-0 |
| German Open - Damdubbel | 2019/02/27 14:10 | Piek/Seinen v Karlsson/Magnusson | W | 2-1 |
| Giraldilla Int. - Mixed dubbel | 2019/02/15 19:00 | Lefel/Tran v Piek/Seinen | W | 0-2 |
| Giraldilla Int. - Mixed dubbel | 2019/02/13 18:00 | Piek/Seinen v Lopez/Usle | W | 2-0 |
| Indonesia Masters - Mixed dubbel | 2019/01/17 07:25 | Piek/Seinen v Matsutomo/Takahashi | L | 0-2 |