| Austrian Open 2019, XD | 2019/11/14 09:40 | Mizutani J / Ito M v Ionescu/Szocs | W | 3-0 |
| German Open 2020, XD | 2019/10/11 08:40 | Mizutani J / Ito M v Sun/Xu | L | 1-3 |
| German Open 2020, XD | 2019/10/10 08:00 | Mizutani J / Ito M v Chen C-A / Chen S-Y | W | 3-1 |
| Swedish Open (WTP) 2019, XD, Qualification | 2019/10/05 11:30 | Mizutani J / Ito M v Xu X / Liu S | L | 2-3 |
| Swedish Open (WTP) 2019, XD, Qualification | 2019/10/04 12:40 | Lin/Wang v Mizutani J / Ito M | W | 1-3 |
| Swedish Open (WTP) 2019, XD, Qualification | 2019/10/04 08:00 | Dyjas J / Partyka N v Mizutani J / Ito M | W | 0-3 |
| Swedish Open (WTP) 2019, XD, Qualification | 2019/10/03 08:00 | Jang W / Yang H v Mizutani J / Ito M | W | 0-3 |
| Czech Open XD | 2019/08/24 11:30 | Cho D / Shin Y v Mizutani J / Ito M | L | 3-2 |
| Austrian Open 2019, XD | 2019/11/14 09:40 | Harimoto/Hayata v Ho K K / Lee H C | W | 3-2 |
| Austrian Open 2019, XD | 2019/11/13 09:00 | Harimoto/Hayata v Dyjas J / Partyka N | W | 3-1 |
| German Open 2020, XD | 2019/10/11 08:40 | Doo/Wong v Harimoto/Hayata | L | 3-1 |
| German Open 2020, XD | 2019/10/10 08:40 | Harimoto/Hayata v Franziska P / Solja P | W | 3-1 |
| German Open 2020, XD | 2019/10/09 15:20 | Dyjas J / Partyka N v Harimoto/Hayata | W | 0-3 |
| German Open 2020, XD | 2019/10/09 08:00 | Pletea C / Samara E v Harimoto/Hayata | W | 0-3 |
| Swedish Open (WTP) 2019, XD, Qualification | 2019/10/04 08:00 | Harimoto/Hayata v Xu X / Liu S | L | 1-3 |
| Swedish Open (WTP) 2019, XD, Qualification | 2019/10/03 08:40 | Lee S / Jeon J v Harimoto/Hayata | W | 2-3 |