| 2016 | 58 kg | 5–0 | Summer Olympics |
| 2015 | 58 kg | 5–0 | World Wrestling Championships |
| 2014 | 58 kg | 4–0 | World Championships |
| 2013 | 63 kg | — | World Championships (Budapest) |
| 2012 | 63 kg | 5–0 | Summer Olympics |
| 2011 | 63 kg | — | World Championships (Istanbul) · Asian Championships (Tashkent) |
| 2010 | 63 kg | — | World Championships (Moscow) |
| 2008 | 63 kg | 5–0 | Summer Olympics · Asian Championships (Jeju Island) |
| 2007 | 63 kg | — | World Championships (Baku) |
| 2006 | 63 kg | — | World Championships (Guangzhou) |
| 2005 | 63 kg | — | Asian Championships (Wuhan) · World Championships (Budapest) |
| 2004 | 63 kg | 4–0 | Summer Olympics · Asian Championships (Tokyo) |
| 2003 | 63 kg | — | World Championships (New York) |
| 2002 | 63 kg | — | World Championships (Chalkida) |
Japan