| Competition | City | Date | Roles |
|---|
| 1 | Western Section Championships 2020 | Kyoto | 2020-10-30 | Judge (Senior ladies, Junior men) |
| 2 | Chu-Shikoku-Kyushu Regional Championships 2020 | Okayama | 2020-09-25 | Judge (Senior men, Junior men, Advanced novice girls, Intermediate novice boys, Intermediate novice girls) |
| 3 | Kinki Regional Championships 2019 | Shiga | 2019-10-03 | Judge (Junior ladies, Advanced novice girls, Advanced novice boys) |
| 4 | Chu-Shikoku-Kyushu Regional Championships 2018 | Miki Town | 2018-09-21 | Judge (Senior men, Junior men, Advanced novice girls, Basic novice B boys, Basic novice B girls) |
| 5 | Kinki Regional Championships 2015 | Otsu | 2015-10-09 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys) |
| 6 | Western Section Championships 2013 | Kyoto | 2013-11-01 | Judge (Senior ladies, Junior men) |
| 7 | Shu-Shikoku-Kyushu Regional Championships 2013 | Fukuoka | 2013-10-03 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 8 | Japan Junior Championships 2012 | Nishitōkyō, Tokyo | 2012-11-17 | Judge (Junior men) |
| 9 | Western Section Championships 2012 | Fukuoka | 2012-11-01 | Judge (Senior ladies, Junior men) |
| 10 | Shu-Shikoku-Kyushu Regional Championships 2011 | Okayama | 2011-09-30 | Judge (Junior ladies, Advanced novice boys, Basic novice B boys) |
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