| Competition | City | Date | Roles |
|---|
| 1 | Kanto Regional Championships 2023 | Yokohama | 2023-10-06 | Judge (Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Intermediate 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 | Kanto Regional Championships 2021 | Chiba | 2021-09-30 | Judge (Senior men, Junior ladies, Intermediate novice boys) |
| 4 | Tokyo Regional Championships 2020 | Nishitokyo | 2020-10-09 | Judge (Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys) |
| 5 | Kanto Regional Championships 2020 | Hitachinaka City | 2020-10-02 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Intermediate novice boys, Intermediate novice girls) |
| 6 | Eastern Section Championships 2019 | Nagano | 2019-10-24 | Judge (Senior ladies, Junior men) |
| 7 | Kanto Regional Championships 2018 | Nikko | 2018-09-27 | Judge (Senior ladies, Senior men, Junior men, Basic novice B girls, Basic novice B boys) |
| 8 | Eastern Section Championships 2017 | Yamanashi | 2017-10-26 | Judge (Senior ladies, Junior men) |
| 9 | Tokyo Regional Championships 2017 | Tokyo | 2017-09-21 | Judge (Senior ladies, Junior men, Advanced novice boys, Basic novice B girls) |
| 10 | Kanto Regional Championships 2016 | Ibaraki | 2016-09-30 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Basic novice B boys) |
| 11 | Eastern Section Championships 2015 | Gunma | 2015-10-29 | Judge (Senior ladies, Junior men) |
| 12 | Kanto Regional Championships 2011 | Gunma | 2011-10-14 | Judge (Junior ladies, Basic novice B girls) |
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