| Competition | City | Date | Roles |
|---|
| 1 | Winter Universiade 2019 | Krasnoyarsk | 2019-03-02 | Judge (Senior ladies) |
| 2 | Eastern Section Championships 2018 | Hachinohe | 2018-10-25 | Judge (Senior ladies, Junior men, Junior pairs) |
| 3 | Nebelhorn Trophy 2018 | Oberstdorf | 2018-09-26 | Judge (Senior ladies, Senior pairs) |
| 4 | NHK Trophy 2017 | Osaka | 2017-11-10 | Judge (Senior ladies) |
| 5 | Eastern Section Championships 2017 | Yamanashi | 2017-10-26 | Judge (Senior ladies, Junior men) |
| 6 | Kanto Regional Championships 2016 | Ibaraki | 2016-09-30 | Judge (Senior ladies, Senior men, Junior men, Advanced novice girls, Basic novice B boys) |
| 7 | Eastern Section Championships 2015 | Gunma | 2015-10-29 | Judge (Senior men, Junior ladies) |
| 8 | Japan Novice Championships 2015 | Tokyo | 2015-10-23 | Judge (Basic novice B girls, Basic novice B boys) |
| 9 | Winter Universiade 2015 | Granada | 2015-02-03 | Judge (Senior men) |
| 10 | Japan Novice Championships 2014 | Osaka | 2014-10-24 | Judge (Basic novice B girls, Basic novice B boys) |
| 11 | Kanto Regional Championships 2014 | Nagano | 2014-09-25 | Judge (Junior ladies, Basic novice B girls) |
| 12 | Japan Championships 2012 | Sapporo | 2012-12-20 | Judge (Senior men) |
| 13 | Finlandia Trophy 2012 | Espoo | 2012-10-05 | Judge (Senior ladies, Senior men) |
| 14 | Kanto Regional Championships 2012 | Yamanashi | 2012-09-27 | Judge (Junior ladies, Basic novice B girls) |
| 15 | NRW Trophy 2011 | Dortmund | 2011-11-29 | Judge (Senior men, Junior ladies) |
| 16 | Eastern Section Championships 2011 | Yamanashi | 2011-11-03 | Judge (Senior men, Junior ladies) |
| 17 | Japan Championships 2010 | Nagano | 2010-12-24 | Judge (Senior men) |
| 18 | Japan Championships 2009 | Osaka | 2009-12-25 | Judge (Senior ladies) |
| 19 | Cup of China 2009 | Beijing | 2009-10-29 | Judge (Senior ladies, Senior men) |
| 20 | Japan Championships 2007 | Kadoma | 2007-12-26 | Judge (Senior ladies) |
| 21 | Winter Universiade 2007 | Torino | 2007-01-17 | Judge (Senior men) |
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