| Competition | City | Date | Roles |
|---|
| 1 | Chubu Regional Championships 2023 | Nagoya | 2023-09-22 | Judge (Senior men, Senior ladies, Junior men, Intermediate novice girls) |
| 2 | Tohoku-Hokkaido Regional Championships 2021 | Sapporo | 2021-10-01 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls) |
| 3 | Eastern Section Championships 2018 | Hachinohe | 2018-10-25 | Judge (Senior ladies, Junior men) |
| 4 | Kanto Regional Championships 2018 | Nikko | 2018-09-27 | Judge (Senior ladies, Senior men, Junior men, Basic novice B girls, Basic novice B boys) |
| 5 | Tokyo Regional Championships 2017 | Tokyo | 2017-09-21 | Judge (Senior men, Junior ladies, Advanced novice girls, Basic novice B boys) |
| 6 | Western Section Championships 2016 | Kyoto | 2016-10-28 | Judge (Senior men, Junior ladies) |
| 7 | Western Section Championships 2015 | Aichi | 2015-10-31 | Judge (Senior ladies, Junior men) |
| 8 | Tohoku-Hokkaido Regional Championships 2014 | Hokkaido | 2014-10-02 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 9 | Tohoku-Hokkaido Regional Championships 2012 | Hokkaido | 2012-10-12 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Basic novice B girls) |
| 10 | Kanto Regional Championships 2011 | Gunma | 2011-10-14 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls, Advanced novice boys, Basic novice B boys) |
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