| Team World Cup, Doubles | 11/09 08:15 | - | Xu X / Liang J v Niwa K / Yoshimura M | L | 3-0 | |
| Team World Cup, Doubles | 11/09 08:15 | - | Liang J / Xu X v Niwa K / Yoshimura M | L | 3-0 | |
| Team World Cup, Doubles | 11/07 10:30 | - | Niwa K / Yoshimura M v Boll T / Franziska P | L | 1-3 | |
| Team World Cup, Doubles | 11/06 08:00 | - | Niwa K / Yoshimura M v Fegerl S / Habesohn D | L | 2-3 | |
| Bulgaria Open 2019, MD | 08/13 17:20 | - | Zhao Z / Zhu L v Niwa K / Yoshimura M | L | 3-0 | |
| Qatar Open XD | 06/17 11:56 | - | Niwa K / Yoshimura M v Ma L / Xu X | L | 0-3 | |
| Qatar Open XD | 06/17 10:30 | 1 | Niwa K / Yoshimura M v Ma L / Xu X | L | 0-3 | |
| Qatar Open XD | 06/17 04:03 | - | Morizono M / Oshima Y v Niwa K / Yoshimura M | W | 1-3 | |
| Qatar Open XD | 06/17 03:00 | 2 | Morizono M / Oshima Y v Niwa K / Yoshimura M | W | 1-3 | |
| Qatar Open XD | 06/16 01:40 | 3 | Niwa K / Yoshimura M v HO K K / Wong C T | W | 3-1 | |
| Qatar Open XD | 06/15 09:10 | 4 | Niwa K / Yoshimura M v Duda B / Qiu D | W | 3-2 | |
| Qatar Open 2019, MS | 06/03 15:30 | 2 | Fan Z / Xu X v Niwa K / Yoshimura M | L | 4-0 |