| Competition | City | Date | Roles |
|---|
| 1 | Singapore Championships 2023 | Singapore | 2023-03-11 | Judge (Senior ladies, Senior men, Junior ladies, Advanced novice girls, Intermediate novice girls, Basic novice girls) |
| 2 | Chubu Regional Championships 2019 | Nagoya | 2019-09-27 | Judge (Junior ladies, Advanced novice boys, Intermediate novice girls) |
| 3 | Singapore Championships 2019 | Singapore | 2019-03-30 | Judge (Senior men, Senior ladies, Junior ladies, Advanced novice girls, Intermediate novice girls, Basic novice girls) |
| 4 | Singapore Championships 2018 | Singapore | 2018-01-19 | Judge (Senior ladies, Senior men, Junior ladies, Junior men, Advanced novice girls, Basic novice B girls, Basic novice A girls) |
| 5 | Western Section Championships 2016 | Kyoto | 2016-10-28 | Judge (Senior men, Junior ladies) |
| 6 | Japan Novice Championships 2016 | Osaka | 2016-10-21 | Judge (Advanced novice boys, Advanced novice girls) |
| 7 | Singapore Championships 2016 | Singapore | 2016-04-23 | Judge (Senior ladies, Junior men, Junior ladies, Advanced novice girls, Basic novice B boys, Basic novice B girls, Basic novice A girls) |
| 8 | Tohoku-Hokkaido Regional Championships 2014 | Hokkaido | 2014-10-02 | Judge (Junior ladies, Advanced novice boys, Basic novice B girls, Basic novice B boys) |
| 9 | Singapore Championships 2014 | Singapore | 2014-04-12 | Judge (Senior ladies, Junior ladies, Advanced novice girls, Advanced novice boys, Basic novice B girls, Basic novice A girls) |
| 10 | Kanto Regional Championships 2013 | Saitama | 2013-10-11 | Judge (Junior ladies, Basic novice B girls) |
| 11 | Singapore Championships 2013 | Singapore | 2013-03-30 | Judge (Senior men, Senior ladies, Junior ladies, Advanced novice girls, Basic novice B boys, Basic novice B girls, Basic novice A girls) |
| 12 | Japan Junior Championships 2012 | Nishitōkyō, Tokyo | 2012-11-17 | Judge (Junior men) |
| 13 | Kanto Regional Championships 2012 | Yamanashi | 2012-09-27 | Judge (Junior ladies, Basic novice B girls) |
| 14 | Singapore Championships 2012 | Singapore | 2012-03-30 | Judge (Senior ladies, Junior ladies, Advanced novice girls, Advanced novice boys, Basic novice B girls, Basic novice A girls, Basic novice A boys, Cubs girls, Chicks girls) |
| 15 | Kanto Regional Championships 2011 | Gunma | 2011-10-14 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Advanced novice girls, Basic novice B boys) |
| 16 | Chubu Regional Championships 2011 | Aichi | 2011-09-30 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls) |
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