| WTT Star Contender Doha WD | 03/28 08:15 | 4 | Kihara/Nagasaki v Bergstrom/Mischek | W | 3-0 | |
| WTT Contender Doha WD | 03/24 09:40 | 1 | Kihara/Nagasaki v Chen/Huang | W | 3-0 | |
| WTT Contender Doha WD | 03/23 07:00 | 2 | Strazar/Tofant v Kihara/Nagasaki | W | 0-3 | |
| WTT Contender Doha WD | 03/22 07:00 | 3 | Kallberg/Bergstrom v Kihara/Nagasaki | W | 1-3 | |
| WTT Contender Doha WD | 03/21 07:40 | 4 | Labosova/Kukulkova v Kihara/Nagasaki | W | 1-3 | |
| WTT Feeder Doha WD | 03/16 07:35 | - | Kihara/Nagasaki v Zhang/Qian | L | 1-3 | |
| WTT Feeder Doha WD | 03/15 14:00 | - | Kihara/Nagasaki v Harac/Yilmaz | W | 3-0 | |
| Japan T League Women | 12/25 03:00 | - | Maeda/Akae v Kihara/Nagasaki | W | 0-2 | |
| Japan T League Women | 12/03 04:05 | - | Ibayashi/Suzuki v Kihara/Nagasaki | W | 0-2 | |
| Qatar Open WD | 03/07 10:20 | 1 | Kihara/Nagasaki v Wang/Zhu | L | 1-3 | |
| Qatar Open WD | 03/06 13:30 | 2 | Kihara/Nagasaki v Lin/Yu | W | 3-1 | |
| Qatar Open WD | 03/06 07:00 | 3 | Kihara/Nagasaki v Soo/Zhu | W | 3-0 | |
| Qatar Open WD | 03/05 08:20 | 4 | Kihara/Nagasaki v Lupulesku/Surjan | W | 3-0 | |
| Japan T League | 02/11 04:56 | - | Nagasaki/Kihara v Yu/Minagawa | W | 2-1 | |
| Japan T League Women | 12/30 02:59 | - | Kihara/Nagasaki v Chen/Jeon | L | 0-2 | |
| World Tour Grand Finals WD | 12/15 11:30 | 1 | Kihara/Nagasaki v Jeon/Yang | W | 3-0 | |
| World Tour Grand Finals WD | 12/13 07:00 | 2 | Kihara/Nagasaki v Sun/Wang | W | 3-2 | |
| World Tour Grand Finals WD | 12/12 08:15 | 3 | Kihara/Nagasaki v Balazova/Matelova | W | 3-2 | |
| Austrian Open WD | 11/16 19:10 | 1 | Kihara/Nagasaki v Chen/Cheng | W | 3-2 | |
| Austrian Open WD | 11/15 16:10 | 2 | Kihara/Nagasaki v Jeon/Shin | W | 3-2 | |
| Austrian Open WD | 11/15 10:40 | 3 | Kihara/Nagasaki v Choi/Yang | W | 3-2 | |
| Austrian Open WD | 11/14 12:05 | 4 | Kihara/Nagasaki v Monteiro Dodean/Samara | W | 3-2 | |
| German Open WD | 10/12 17:50 | 2 | Jeon/Yang v Kihara/Nagasaki | L | 3-1 | |
| German Open WD | 10/11 14:10 | 3 | Chen/Gu v Kihara/Nagasaki | W | 2-3 | |
| German Open WD | 10/11 09:20 | 4 | Ng/Soo v Kihara/Nagasaki | W | 1-3 | |
| German Open WD | 10/10 10:00 | 5 | Bajor/Partyka v Kihara/Nagasaki | W | 0-3 | |
| Swedish Open WD | 10/03 10:20 | 1 | Shao/Yu v Kihara/Nagasaki | L | 3-1 | |
| Japan T League | 08/30 09:30 | - | Maeda/Chen v Nagasaki/Kihara | D |
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| Czech Open WD | 08/22 09:40 | 4 | Kihara/Nagasaki v Gu/Mu | L | 2-3 | |
| Bulgaria Open WD | 08/16 08:10 | 4 | Hirano/Shibata v Kihara/Nagasaki | L | 3-1 |