Tepparith Singwancha

Tepparith Singwancha or Tepparith Kokietgym (, born November 22, 1988) is a Thai professional boxer in the super flyweight division and was the World Boxing Association (WBA) Super Flyweight Champion from 2011 – 2012. He won the interim title on May 1, 2011 in Phetchaburi, Thailand against Drian Francisco, and was elevated to full champion in November of that year.
He can beat all Japanese boxers in Japan for three consecutive times include Daiki Kameda (2011-12-07), Tomonobu Shimizu (2012-04-04; eliminator fight), and Nobuo Nashiro (2012-09-01), he earned the nickname from the journalist "Japan Killer".
But in the end of 2012, he was defeated by TKO (referee stop contest, because he isn't in a position to continue fighting after being knocked down three times) in the fourth round with Kohei Kono at Ota-City General Gymnasium, Tokyo.