Kokugikan, Tokyo, Japan - WBC bantamweight champion Shinsuke Yamanaka (20-0-2, 15KOs) dropped Alberto Guevara (18-2, 6KOs) three times on his way to a ninth round TKO victory. At the time of the stoppage, the champion was well ahead with scores of 79-71 across the board.
Former champion Takahiro Aoh (25-3-1, 12KOs) stopped Edgar Lomeli (14-4-2, 8KOs) in the first round of their junior welterweight encounter.
One of boxing's bext, Roman Gonzalez (37-0, 31KOs), took out Oscar Blanquet (32-7-1, 23KOs) in two rounds. Blanquet was down in the first.
Former champion Jorge Linares (35-3, 23KOs) needed one round to put away late replacement Francisco Contreras (21-7-1, 23KOs).