| WTT Contender Tunis WD | 08/03 09:30 | - | Hirano/Ishikawa v Harimoto/Nagasaki | L | 2-3 | |
| WTT Star Contender Budapest WD | 07/15 13:00 | 3 | Sun/Wang v Hirano/Ishikawa | L | 3-1 | |
| WTT Star Contender Budapest WD | 07/14 13:10 | 4 | Hirano/Ishikawa v Bergstrom/Kallberg | W | 3-0 | |
| World Championship WD | 11/27 18:40 | 3 | Wang/Sun v Hirano/Ishikawa | L | 3-2 | |
| World Championship WD | 11/26 19:00 | - | Paranang/Sawettabut v Ishikawa/Hirano | W | 0-3 | |
| World Championship WD | 11/25 17:10 | - | Szocs/Polcanova v Ishikawa/Hirano | W | 0-3 | |
| Olympics 2020 - Team Women | 08/05 10:30 | 1 | Chen/Wang v Ishikawa/Hirano | L | 3-1 | |
| Olympics 2020 - Team Women | 08/03 10:30 | 2 | Soo/Lee v Ishikawa/Hirano | W | 0-3 | |
| Olympics 2020 - Team Women | 08/02 10:30 | 3 | Cheng/Chen v Ishikawa/Hirano | W | 0-3 | |
| Olympics 2020 - Team Women | 08/01 10:30 | 7 | Fazekas/Pergel v Ishikawa/Hirano | W | 0-3 | |
| WTT Star Contender Doha WD | 03/13 07:00 | 1 | Ishikawa/Hirano v Shin/Jeon | L | 0-3 | |
| WTT Star Contender Doha WD | 03/11 11:15 | 1 | Ishikawa/Hirano v Hayata/Kihara | W | 3-2 | |
| WTT Star Contender Doha WD | 03/10 15:15 | 1 | Ishikawa/Hirano v Mittelham/Shan | W | 3-0 | |
| WTT Star Contender Doha WD | 03/09 17:15 | 1 | Ishikawa/Hirano v Lee/Choi | W | 3-0 | |
| WTT Contender Doha WD | 03/06 07:00 | 1 | Ishikawa/Hirano v Chen/Cheng | W | 3-0 | |
| WTT Contender Doha WD | 03/05 13:15 | 1 | Ishikawa/Hirano v Hayata/Kihara | W | 3-1 | |
| WTT Contender Doha WD | 03/04 11:55 | 1 | Ishikawa/Hirano v Loeuillette/Nan Yuan | W | 3-2 | |
| WTT Contender Doha WD | 03/03 15:00 | 1 | Ishikawa/Hirano v Noskova/Vorobeva | W | 3-1 | |
| Qatar Open WD | 03/06 13:30 | 2 | Hirano/Ishikawa v Wang/Zhu | L | 2-3 | |
| Qatar Open WD | 03/06 07:00 | 3 | Hirano/Ishikawa v Loeuillette/Yuan | - | Walkover | |
| Qatar Open WD | 03/05 09:00 | 4 | Hirano/Ishikawa v Bogdanova/Trigolos | W | 3-0 | |
| Hungarian Open WD | 02/22 19:00 | 1 | Hirano/Ishikawa v Doo/Lee | W | 3-0 | |
| Hungarian Open WD | 02/21 14:40 | 2 | Paranang/Sawettabut v Hirano/Ishikawa | W | 1-3 | |
| Hungarian Open WD | 02/21 09:30 | 3 | Shao/Yu v Hirano/Ishikawa | W | 1-3 | |
| Hungarian Open WD | 02/20 10:40 | 4 | Meshref/Toliou v Hirano/Ishikawa | W | 0-3 | |
| German Open WD | 02/01 18:50 | 2 | Chen/Wang v Hirano/Ishikawa | L | 3-1 | |
| German Open WD | 01/31 15:20 | 3 | Ding/Sun v Hirano/Ishikawa | W | 1-3 | |
| German Open WD | 01/31 10:20 | 4 | Hirano/Ishikawa v Chen/Cheng | W | 3-1 | |
| German Open WD | 01/30 10:20 | 5 | Hirano/Ishikawa v Gasnier/Migot | W | 3-1 | |
| Austrian Open WD | 11/15 16:10 | 2 | Hirano/Ishikawa v Chen/Cheng | L | 2-3 |