| Competition | City | Date | Roles |
|---|
| 1 | Chu-Shikoku-Kyushu Regional Championships 2023 | Fukuoka | 2023-10-06 | Judge (Senior ladies, Junior ladies, Advanced novice boys) |
| 2 | Tohoku-Hokkaido Regional Championships 2022 | Hachinohe | 2022-10-07 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Intermediate novice boys, Intermediate novice girls) |
| 3 | Tohoku-Hokkaido Regional Championships 2018 | Sapporo | 2018-09-21 | Judge (Senior men, Senior ladies, Junior men, Basic novice B boys, Basic novice B girls) |
| 4 | Shu-Shikoku-Kyushu Regional Championships 2017 | Fukuoka | 2017-10-06 | Judge (Senior men, Junior men, Advanced novice girls, Basic novice B girls, Basic novice B boys) |
| 5 | Tohoku-Hokkaido Regional Championships 2014 | Hokkaido | 2014-10-02 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls) |
| 6 | Tohoku-Hokkaido Regional Championships 2013 | Aomori | 2013-10-11 | Judge (Junior ladies, Basic novice B girls) |
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