The 21 year old Yamanaka, from the Kobe based Shinsei gym, was facing off against limited Thai Thoedkiad Weerachon (0-5) and unsurprisingly the bout was a mismatch from the opening stages.
The opening round saw Yamanaka ease his way in to the bout and by the end of round two he was really beginning to find his range, rhythm and timing. Sadly the signs were there that this wasn't going to go far and in round 3 Yamanaka upped the tempo, dropping Theokiad for the first time in the fight. The Thai got to his feet and was swiftly sent back down for the second knockdown of the fight, before being stopped as Yamanaka unloaded a flurry.
This was Yamanaka's 5th successive win and wasn't he's nowhere near for a world title fight, there is a good chance that he could be fighting for a Japanese title by the end of the year. Sadly for the Thai this was a 5th straight stoppage loss.
(Image courtesy of boxingnews.jp)