| 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 | Tohoku-Hokkaido Regional Championships 2022 | Hachinohe | 2022-10-07 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Intermediate novice girls, Intermediate novice boys) |
| 3 | Tokyo Regional Championships 2021 | Nishitokyo | 2021-10-07 | Judge (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls) |
| 4 | Japan Junior Championships 2020 | Hachinohe,Aomori | 2020-11-21 | Judge (Junior ladies) |
| 5 | Tohoku-Hokkaido Regional Championships 2020 | Niigata | 2020-10-10 | Judge (Junior ladies, Intermediate novice boys) |
| 6 | Tokyo Regional Championships 2018 | Nishitokyo | 2018-10-05 | Judge (Senior men, Junior ladies, Advanced novice girls) |
| 7 | Kanto Regional Championships 2017 | Kanagawa | 2017-09-28 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Basic novice B boys) |
| 8 | Tohoku-Hokkaido Regional Championships 2016 | Hachinohe | 2016-10-08 | Judge (Senior men, Senior ladies, Junior men, Basic novice B boys, Basic novice B girls) |
| 9 | Eastern Section Championships 2015 | Gunma | 2015-10-29 | Judge (Senior men, Junior ladies) |
| 10 | Kanto Regional Championships 2015 | Chiba | 2015-10-08 | Judge (Senior men, Senior ladies, Junior men, Advanced novice girls, Basic novice B boys) |
| 11 | Eastern Section Championships 2014 | Chiba | 2014-10-30 | Judge (Senior men, Junior ladies) |
| 12 | Eastern Section Championships 2013 | Gunma | 2013-11-01 | Judge (Senior ladies, Junior men) |
| 13 | Tohoku-Hokkaido Regional Championships 2013 | Aomori | 2013-10-11 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
| 14 | Eastern Section Championships 2012 | Chiba | 2012-11-01 | Judge (Senior ladies, Junior men) |
| 15 | Tohoku-Hokkaido Regional Championships 2012 | Hokkaido | 2012-10-12 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Basic novice B girls) |
| 16 | Tohoku-Hokkaido Regional Championships 2011 | Aomori | 2011-10-12 | Judge (Junior ladies, Advanced novice boys, Basic novice B boys, Basic novice B girls) |
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