Eri Tosaka successfully defended her title in the women's 48-kg class by beating Iwona Nina Matkowska of Poland in the final at the World Wrestling Championships on Wednesday.
Japan's women claimed two of the four gold medals on offer on the third day of the worlds.
The 21-year-old Tosaka won three consecutive matches from the first round by technical fall before seeing off Hyong Gyong Kim of North Korea 4-0 in the semifinals and clobbering Matkowska 10-2 in the final.