Chizuru Arai won Japan's sixth gold medal of the event ©Getty Images

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The Japanese judoka secured the under 70kg title with an ippon win over Puerto Rico's Maria Perez ©Getty Images
The Japanese judoka secured the under 70kg title with an ippon win over Puerto Rico's Maria Perez ©Getty Images
Chizuru Arai had beaten Colombian favourite Yuri Alvear in the semi-final ©Getty Images
Chizuru Arai had beaten Colombian favourite Yuri Alvear in the semi-final ©Getty Images
Mayra Aguiar of Brazil clinched her second world title with victory over Mami Useki of Japan in the under 78kg final ©Getty Images
Mayra Aguiar of Brazil clinched her second world title with victory over Mami Useki of Japan in the under 78kg final ©Getty Images
The double Olympic medallist emerged victorious in the golden score period ©Getty Images
The double Olympic medallist emerged victorious in the golden score period ©Getty Images
Aguiar's triumph meant Japan had to settle for the silver medal ©Getty Images
Aguiar's triumph meant Japan had to settle for the silver medal ©Getty Images
Serbia's Nemanja Majdov, right, and Slovenian Mihael Žgank were surprise finalists at under 90kg ©Getty Images
Serbia's Nemanja Majdov, right, and Slovenian Mihael Žgank were surprise finalists at under 90kg ©Getty Images
The Serbian prevailed by golden score to clinch his first world title ©Getty Images
The Serbian prevailed by golden score to clinch his first world title ©Getty Images
Majdov's win handed Serbia their first medal of the Championships ©Getty Images
Majdov's win handed Serbia their first medal of the Championships ©Getty Images
Spain's Maria Bernabeu was delighted with her bronze at under 70kg ©Getty Images
Spain's Maria Bernabeu was delighted with her bronze at under 70kg ©Getty Images