| Open d'Allemagne - Doubles Mixtes | 2023/03/07 16:00 | Watanabe/Higashino v Ko S H / Eom H W | L | 2-1 |
| Open d'Angleterre - Double Mixtes | 2020/03/11 09:20 | Ko S H / Eom H W v Watanabe/Higashino | L | 0-2 |
| Australian Open XD | 2019/06/07 05:00 | Ko S H / Eom H W v Watanabe/Higashino | L | 1-2 |