| 2016 | 53 kg | 4–1 | Summer Olympics |
| 2015 | 53 kg | 5–0 | World Wrestling Championships |
| 2014 | 53 kg | 4–0 | World Championships |
| 2013 | 55 kg | — | World Championships (Budapest) |
| 2012 | 55 kg | 5–0 | Summer Olympics · World Championships (Strathcona County) |
| 2011 | 55 kg | — | World Championships (Istanbul) |
| 2010 | 55 kg | — | World Championships (Moscow) |
| 2009 | 55 kg | — | World Championships (Herning) |
| 2008 | 55 kg | 4–0 | Summer Olympics · Asian Championships (Jeju Island) · World Championships (Tokyo) |
| 2007 | 55 kg | — | World Championships (Baku) · Asian Championships (Bishkek) |
| 2006 | 55 kg | — | World Championships (Guangzhou) |
| 2005 | 55 kg | — | Asian Championships (Wuhan) · World Championships (Budapest) |
| 2004 | 55 kg | 4–0 | Summer Olympics · Asian Championships (Tokyo) |
| 2003 | 55 kg | — | World Championships (New York) |
| 2002 | 55 kg | — | World Championships (Chalkida) |
| 2001 | 58 kg | — | World Championships (Martigny) |
| 2000 | 58 kg | — | World Championships (Nantes) |
| 1999 | 56 kg | — | World Championships (Lodz) |
| 1998 | 52 kg | — | World Championships (Manchester) |
Japan