In the Olympic men's Judo 66 kg quarter-final match Ebinuma, Japan vs Chon, South Korea, a referee and 2 corner judges all definitely raised blue flags for South Korean Cho despite the crystal clear fact that Ebinuma, Japan should have won the match by Hantei. Almost entire audience who witnessed the match and believed that Japan Ebinuma would win the match started booing at the referee and 2 corner judges. They then discussed it for a few minutes and cancelled their previous judgement and finally raised 3 white flags for Ebinuma, Japan.

There remains a big question of why they first raised three blue flags and then changed them for three white flags after booing.

Many tweet in Japanese that all judges and referees must have been bribed by South Korea.