| 2011 | 34. World Championships | Masatoshi SAMMA | ||||||
| 2008 | 9. Olympic Games | Masatoshi SAMMA | ||||||
| 2008 | 16. World-Cup Final Ranking | Masatoshi SAMMA | ||||||
| 2007 | 20. World Championships | Masatoshi SAMMA | ||||||
| 2004 | 43. World-Cup Final Ranking | Motoki NAGAI | ||||||
| 2003 | 37. World Championships | Motoki NAGAI | ||||||
| 2003 | 35. World-Cup Final Ranking | Motoki NAGAI |
For national championships prior to 1991 only medals are listed.