| Competition | City | Date | Roles |
|---|
| 1 | Coupe du Printemps 2017 | Luxembourg | 2017-03-10 | Judge (Senior ladies, Junior men, Advanced novice boys, Advanced novice girls) |
| 2 | Eastern Section Championships 2016 | Nishitokyo | 2016-11-04 | Judge (Senior men, Junior ladies) |
| 3 | Japan Novice Championships 2015 | Tokyo | 2015-10-23 | Judge (Basic novice B girls, Basic novice B boys) |
| 4 | Tokyo Regional Championships 2014 | Tokyo | 2014-10-10 | Judge (Senior men, Senior ladies, Junior men, Advanced novice boys, Basic novice B boys) |
| 5 | JGP Pokal der Blauen Schwerter 2014 | Dresden | 2014-10-01 | Judge (Junior men) |
| 6 | Japan Championships 2012 | Sapporo | 2012-12-20 | Judge (Senior men) |
| 7 | JGP Croatia 2012 | Zagreb | 2012-10-03 | Judge (Junior ladies) |
| 8 | South African National Championships 2012 | Kempton Park | 2012-05-06 | Judge (Senior ladies, Junior men, Junior ladies) |
| 9 | 4th Rooster cup | Courbevoie | 2012-04-26 | Judge (Advanced novice girls, Advanced novice boys, Basic novice A boys, Cubs boys) |
| 10 | Tokyo Regional Championships 2011 | Tokyo | 2011-10-08 | Referee (Senior men, Junior ladies, Advanced novice boys, Basic novice B girls)
|
| 11 | Japan Championships 2009 | Osaka | 2009-12-25 | Judge (Senior ladies) |
| 12 | JGP Budapest 2009 | Budapest | 2009-08-26 | Judge (Junior ladies) |
| 13 | Cup Of China 2006 | Nanjing | 2006-11-09 | Judge (Senior men) |
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