| Swedish Open - Mixed dubbel | 2019/10/02 07:30 | Harimoto/Hayata v Khanin/Trigolos | W | 3-0 |
| Japan Open - Mixed dubbel | 2019/06/15 05:00 | Harimoto/Hayata v Xu/Zhu | L | 0-3 |
| Japan Open - Mixed dubbel | 2019/06/15 01:00 | Harimoto/Hayata v Fan/Ding | W | 3-1 |
| Japan Open - Mixed dubbel | 2019/06/14 08:30 | Lee/Jeon v Harimoto/Hayata | W | 0-3 |
| Japan Open - Mixed dubbel | 2019/06/13 01:00 | Harimoto/Hayata v Gonzalez/Diaz | W | 3-0 |
| Hong Kong Open - Mixed dubbel | 2019/06/06 02:00 | Doo/Wong v Harimoto/Hayata | L | 3-1 |
| Hong Kong Open - Mixed dubbel | 2019/06/05 08:00 | Tromer/Eerland v Harimoto/Hayata | W | 0-3 |
| Hong Kong Open - Mixed dubbel | 2019/06/04 08:30 | Gonzalez/Diaz v Harimoto/Hayata | W | 1-3 |
| Swedish Open - Mixed dubbel | 2019/10/02 08:10 | Diaconu/Pletea v Tsuboi/Takahashi | W | 0-3 |
| Czech Open XD | 2019/08/23 12:40 | Mizutani/Ito v Tsuboi/Takahashi | L | 3-0 |
| Czech Open XD | 2019/08/23 08:00 | Tsuboi/Takahashi v Mittelham/Qiu | W | 3-0 |
| Czech Open XD | 2019/08/22 08:40 | Szudi/Pergel v Tsuboi/Takahashi | W | 2-3 |
| Panamerikanska spelen - Mixed dubbel | 2019/08/06 01:00 | Wang/Zhang v Tsuboi/Takahashi | L | 4-1 |
| Panamerikanska spelen - Mixed dubbel | 2019/08/05 15:00 | Tsuboi/Takahashi v Afanador/Diaz | W | 4-1 |
| Panamerikanska spelen - Mixed dubbel | 2019/08/04 23:00 | Tsuboi/Takahashi v Madrid/Silva | W | 4-1 |
| Panamerikanska spelen - Mixed dubbel | 2019/08/04 16:00 | Tsuboi/Takahashi v Navas/Nino | W | 4-2 |