| Competition | City | Date | Roles |
|---|
| 1 | Eastern Section Championships 2023 | Hachinohe | 2023-11-02 | Judge (Senior men, Junior ladies) |
| 2 | Tokyo Regional Championships 2023 | Nishitokyo | 2023-09-21 | Judge (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls) |
| 3 | Tohoku-Hokkaido Regional Championships 2019 | Hachinohe Aomori | 2019-09-20 | Judge (Senior men, Senior ladies, Junior men, Intermediate novice boys, Intermediate novice girls) |
| 4 | Tohoku-Hokkaido Regional Championships 2016 | Hachinohe | 2016-10-08 | Judge (Senior ladies, Senior men, Junior men, Basic novice B girls, Basic novice B boys) |
| 5 | Eastern Section Championships 2015 | Gunma | 2015-10-29 | Judge (Senior men, Junior ladies) |
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