| Competition | City | Date | Roles |
|---|
| 1 | Tokyo Regional Championships 2019 | Nishitokyo | 2019-09-20 | Judge (Senior men, Junior ladies, Intermediate novice girls) |
| 2 | Tokyo Regional Championships 2016 | Tokyo | 2016-09-23 | Judge (Senior men, Junior ladies, Advanced novice girls, Basic novice B boys) |
| 3 | Tokyo Regional Championships 2015 | Tokyo | 2015-09-24 | Judge (Senior men, Junior ladies, Advanced novice girls, Basic novice B boys) |
| 4 | Tokyo Regional Championships 2014 | Tokyo | 2014-10-10 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Basic novice B boys) |
| 5 | Tokyo Regional Championships 2013 | Tokyo | 2013-10-03 | Judge (Senior men, Senior ladies, Advanced novice girls, Basic novice B girls) |
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