| Competition | City | Date | Roles |
|---|
| 1 | Eastern Section Championships 2023 | Hachinohe | 2023-11-02 | Judge (Senior ladies, Junior men) |
| 2 | Tohoku-Hokkaido Regional Championships 2022 | Hachinohe | 2022-10-07 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls, Intermediate novice girls, Intermediate novice boys) |
| 3 | Tohoku-Hokkaido Regional Championships 2021 | Sapporo | 2021-10-01 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls) |
| 4 | Kanto Regional Championships 2020 | Hitachinaka City | 2020-10-02 | Judge (Junior ladies, Advanced novice girls) |
| 5 | Tokyo Regional Championships 2019 | Nishitokyo | 2019-09-20 | Judge (Senior ladies, Junior men, Advanced novice girls, Advanced novice boys, Intermediate novice boys) |
| 6 | Tohoku-Hokkaido Regional Championships 2018 | Sapporo | 2018-09-21 | Judge (Junior ladies, Advanced novice boys, Advanced novice girls) |
| 7 | Western Section Championships 2017 | Fukuoka | 2017-11-02 | Judge (Senior men, Junior ladies) |
| 8 | Eastern Section Championships 2016 | Nishitokyo | 2016-11-04 | Judge (Senior ladies, Junior men) |
| 9 | Western Section Championships 2013 | Kyoto | 2013-11-01 | Judge (Senior ladies, Junior men) |
| 10 | Kanto Regional Championships 2013 | Saitama | 2013-10-11 | Judge (Junior ladies, Basic novice B girls) |
| 11 | Eastern Section Championships 2012 | Chiba | 2012-11-01 | Judge (Senior men, Junior ladies) |
| 12 | Japan Novice Championships 2012 | Kyoto | 2012-10-26 | Judge (Basic novice B boys, Basic novice B girls) |
| 13 | Japan Novice Championships 2011 | Tokyo | 2011-10-28 | Judge (Advanced novice boys, Advanced novice girls) |
| 14 | Tokyo Regional Championships 2011 | Tokyo | 2011-10-08 | Judge (Senior ladies, Junior men, Advanced novice girls) |
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