| Olympics 2020 - XD | 07/26 12:00 | 1 | Xu/Liu v Mizutani/Ito | W | 3-4 | |
| Olympics 2020 - XD | 07/25 12:00 | 2 | Ju/Cheng v Mizutani/Ito | W | 1-4 | |
| Olympics 2020 - XD | 07/25 02:00 | 3 | Franziska/Solja v Mizutani/Ito | W | 3-4 | |
| Olympics 2020 - XD | 07/24 02:15 | 4 | Fegerl/Polcanova v Mizutani/Ito | W | 1-4 | |
| WTT Star Contender Doha XD | 03/12 16:00 | 1 | Mizutani/Ito v Jeon/Lee | L | 1-3 | |
| WTT Star Contender Doha XD | 03/11 16:00 | 1 | Mizutani/Ito v Lebesson/Nan Yuan | W | 3-1 | |
| WTT Star Contender Doha XD | 03/08 15:00 | 1 | Mizutani/Ito v Afanador/Diaz | W | 3-1 | |
| Qatar Open XD | 03/07 15:30 | 1 | Mizutani/Ito v Wang/Sun | W | 3-1 | |
| Qatar Open XD | 03/06 11:30 | 2 | Mizutani/Ito v Ho/Lee | W | 3-0 | |
| Qatar Open XD | 03/05 17:40 | 3 | Mizutani/Ito v Ionescu/Szocs | W | 3-0 | |
| Qatar Open XD | 03/05 07:00 | 4 | Mizutani/Ito v Jevtovic/Surjan | W | 3-0 | |
| Hungarian Open XD | 02/20 20:20 | 4 | Achanta/Batra v Mizutani/Ito | - | Walkover | |
| Hungarian Open XD | 02/20 09:40 | 5 | Gunduz/Altinkaya v Mizutani/Ito | W | 1-3 | |
| German Open XD | 02/01 12:20 | 2 | Xu/Liu v Mizutani/Ito | L | 3-1 | |
| German Open XD | 01/31 17:00 | 3 | Mizutani/Ito v Lin/Cheng | W | 3-0 | |
| German Open XD | 01/31 09:40 | 4 | Mizutani/Ito v Robles/Xiao | - | Walkover | |
| German Open XD | 01/30 09:40 | 5 | Mizutani/Ito v Lin/Sun | W | 3-1 | |
| World Tour Grand Finals XD | 12/14 06:40 | 1 | Mizutani/Ito v Xu/Liu | L | 2-3 | |
| World Tour Grand Finals XD | 12/13 06:00 | 2 | Wong/Doo v Mizutani/Ito | W | 0-3 | |
| World Tour Grand Finals XD | 12/12 05:40 | 3 | Flore/Gasnier v Mizutani/Ito | W | 0-3 | |
| Austrian Open XD | 11/15 09:00 | 3 | Mizutani/Ito v Harimoto/Hayata | L | 1-3 | |
| Austrian Open XD | 11/14 09:40 | 4 | Mizutani/Ito v Ionescu/Szocs | W | 3-0 | |
| German Open XD | 10/11 08:40 | 4 | Mizutani/Ito v Xu/Sun | L | 1-3 | |
| German Open XD | 10/10 08:00 | 5 | Mizutani/Ito v Chen/Chen | W | 3-1 | |
| Swedish Open XD | 10/05 11:30 | 2 | Mizutani/Ito v Xu/Liu | L | 2-3 | |
| Swedish Open XD | 10/04 12:40 | 3 | Lin/Wang v Mizutani/Ito | W | 1-3 | |
| Swedish Open XD | 10/04 08:00 | 4 | Dyjas/Partyka v Mizutani/Ito | W | 0-3 | |
| Swedish Open XD | 10/03 08:00 | 1 | Yang/Jang v Mizutani/Ito | W | 0-3 | |
| Czech Open XD | 08/24 11:30 | 1 | Cho/Shin v Mizutani/Ito | L | 3-2 | |
| Czech Open XD | 08/23 12:40 | 2 | Mizutani/Ito v Tsuboi/Takahashi | W | 3-0 |