| Competition | City | Date | Roles |
|---|
| 1 | Japan Championships 2023 | Nagano | 2023-12-20 | Judge (Senior men) |
| 2 | Western Section Championships 2023 | Hiroshima | 2023-10-25 | Judge (Senior ladies, Senior ice dance, Junior men, Junior ice dance) |
| 3 | Coupe du Printemps 2023 | Luxembourg | 2023-03-17 | Judge (Senior men, Junior ladies, Advanced novice boys, Basic novice girls) |
| 4 | Japan Championships 2022 | Kadoma | 2022-12-22 | Judge (Senior men) |
| 5 | Japan Championships 2021 | Saitama | 2021-12-22 | Judge (Senior ladies, Senior ice dance) |
| 6 | Tokyo Regional Championships 2021 | Nishitokyo | 2021-10-07 | Referee (Senior men, Junior ladies, Advanced novice boys, Intermediate novice girls)
|
| 7 | Japan Open 2021 | Saitama | 2021-10-02 | Judge (Senior ladies, Senior men) |
| 8 | Japan Championships 2020 | Nagano | 2020-12-24 | Judge (Senior men, Senior ice dance) |
| 9 | Bavarian Open 2020 | Oberstdorf | 2020-02-03 | Judge (Senior men, Senior ladies, Senior pairs) |
| 10 | Japan Championships 2019 | Tokyo | 2019-12-18 | Judge (Senior ladies, Senior ice dance) |
| 11 | Japan Championships 2018 | Osaka | 2018-12-20 | Judge (Senior men) |
| 12 | Tokyo Regional Championships 2018 | Nishitokyo | 2018-10-05 | Referee (Senior men, Junior ladies, Advanced novice girls)
|
| 13 | Bavarian Open 2018 | Oberstdorf | 2018-01-26 | Judge (Senior ladies, Junior ladies 1, Junior ladies 2, Junior men, Advanced novice boys) |
| 14 | Japan Championships 2017 | Tokyo | 2017-12-19 | Judge (Senior ladies) |
| 15 | Kanto Regional Championships 2017 | Kanagawa | 2017-09-28 | Referee (Senior ladies, Senior men, Junior men, Advanced novice girls, Basic novice B boys)
|
| 16 | Coupe du Printemps 2017 | Luxembourg | 2017-03-10 | Judge (Senior ladies, Junior men, Advanced novice girls, Advanced novice boys) |
| 17 | Eastern Section Championships 2016 | Nishitokyo | 2016-11-04 | Judge (Senior men, Junior ladies) |
| 18 | Japan Novice Championships 2015 | Tokyo | 2015-10-23 | Judge (Basic novice B boys, Basic novice B girls) |
| 19 | Tokyo Regional Championships 2014 | Tokyo | 2014-10-10 | Judge (Senior ladies, Senior men, Junior men, Advanced novice boys, Basic novice B boys) |
| 20 | JGP Pokal der Blauen Schwerter 2014 | Dresden | 2014-10-01 | Judge (Junior men, Junior pairs) |
| 21 | Japan Championships 2012 | Sapporo | 2012-12-20 | Judge (Senior men) |
| 22 | JGP Zagreb 2012 | Zagreb | 2012-10-03 | Judge (Junior ladies) |
| 23 | South African National Championships 2012 | Kempton Park | 2012-05-06 | Judge (Senior ladies, Junior men, Junior ladies) |
| 24 | 4th Rooster cup | Courbevoie | 2012-04-26 | Judge (Advanced novice boys, Advanced novice girls, Basic novice A boys, Cubs boys) |
| 25 | Tokyo Regional Championships 2011 | Tokyo | 2011-10-08 | Referee (Senior men, Junior ladies, Advanced novice boys, Basic novice B girls)
|
| 26 | Japan Championships 2009 | Osaka | 2009-12-25 | Judge (Senior ladies) |
| 27 | JGP Budapest 2009 | Budapest | 2009-08-26 | Judge (Junior ladies) |
| 28 | Cup of China 2006 | Nanjing | 2006-11-09 | Judge (Senior men) |
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