| Austrian Open 2019, WD | 2019/11/14 12:05 | Kihara/Nagasaki v Monteiro / Samara | W | 3-2 |
| German Open 2020, WD | 2019/10/12 17:50 | Jeon J / Yang H v Kihara/Nagasaki | L | 3-1 |
| German Open 2020, WD | 2019/10/11 14:10 | Chen/Gu v Kihara/Nagasaki | W | 2-3 |
| German Open 2020, WD | 2019/10/11 09:20 | Ng W N / Soo W Y M v Kihara/Nagasaki | W | 1-3 |
| German Open 2020, WD | 2019/10/10 10:00 | Bajor N / Partyka N v Kihara/Nagasaki | W | 0-3 |
| Swedish Open (WTP) 2019, WD | 2019/10/03 10:20 | Shao J / Yu F v Kihara/Nagasaki | L | 3-1 |
| Czech Open (WT) 2018, Women Doubles | 2019/08/22 09:40 | Kihara/Nagasaki v Gu Y / Mu Z | L | 2-3 |
| Bulgaria Open 2019, WD | 2019/08/16 08:10 | Hirano M / Shibata S v Kihara/Nagasaki | L | 3-1 |
| Austrian Open 2019, WD | 2019/11/14 12:05 | Gu Y / Sun M v Choi H / Yang H | W | 1-3 |
| Korea Open 2019, WD | 2019/07/06 07:50 | Chen/Wang v Choi H / Yang H | L | 3-0 |
| Korea Open 2019, WD | 2019/07/05 07:30 | Lee S / Jeon J v Choi H / Yang H | W | 1-3 |
| Korea Open 2019, WD | 2019/07/05 02:55 | Choi H / Yang H v Balazova/Matelova | W | 3-1 |
| Korea Open 2019, WD | 2019/07/04 02:20 | Choi H / Yang H v Gasnier L / Zarif A | W | 3-1 |