| Competition | City | Date | Roles |
|---|
| 1 | Tokyo Regional Championships 2023 | Nishitokyo | 2023-09-21 | Judge (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls) |
| 2 | Tokyo Regional Championships 2021 | Nishitokyo | 2021-10-07 | Judge (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls) |
| 3 | Chubu Regional Championships 2020 | Nagoya | 2020-09-25 | Judge (Junior ladies, Advanced novice boys, Intermediate novice boys, Intermediate novice girls) |
| 4 | Tokyo Regional Championships 2019 | Nishitokyo | 2019-09-20 | Judge (Senior men, Junior ladies, Intermediate novice girls) |
| 5 | Tokyo Regional Championships 2018 | Nishitokyo | 2018-10-05 | Judge (Senior men, Junior ladies, Advanced novice girls) |
| 6 | Kanto Regional Championships 2017 | Kanagawa | 2017-09-28 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Basic novice B boys) |
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