| Competition | City | Date | Roles |
|---|
| 1 | Tokyo Regional Championships 2022 | Nishitokyo | 2022-09-30 | Judge (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys) |
| 2 | Kanto Regional Championships 2021 | Chiba | 2021-09-30 | Judge (Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Intermediate novice girls) |
| 3 | Tokyo Regional Championships 2020 | Nishitokyo | 2020-10-09 | Judge (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys) |
| 4 | Kanto Regional Championships 2020 | Hitachinaka City | 2020-10-02 | Judge (Junior ladies, Advanced novice girls) |
| 5 | Kanto Regional Championships 2019 | Yamanashi | 2019-10-03 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 6 | Eastern Section Championships 2017 | Yamanashi | 2017-10-26 | Judge (Senior men, Junior ladies) |
| 7 | Kanto Regional Championships 2016 | Ibaraki | 2016-09-30 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls, Basic novice B boys) |
| 8 | Tokyo Regional Championships 2015 | Tokyo | 2015-09-24 | Judge (Senior men, Junior ladies, Advanced novice girls, Basic novice B boys) |
| 9 | Kanto Regional Championships 2014 | Nagano | 2014-09-25 | Judge (Junior ladies, Basic novice B girls) |
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