The hard hitting champion, facing off against Tetsuya Hasunuma (7-5-3, 3), had to over come some early problems caused by the challengers movement. Unfortunately for Hasunuma however when he his movement slowed Obara applied increasing pressure.
Obara's pressure began to really pay off in round 8 as the men traded shots with Obara's being the much heavier and devastating. By the end of round 8 you could tell that Hasunuma was wilting and mid way through round 9 Obara manage to finish off the game challenger.
With this defense out of the way Obara really should be thinking about turning his attention to the OPBF title at 140lbs. If he does then that could lead to a very interesting, highly exciting and hugely explosive clash with Min-Wook Kim.