RING and WBC flyweight champion Akira Yaegashi (19-3, 9 knockouts) made the second successful defense of his title Friday night, defeating streaking former titleholder Edgar Sosa (49-8, 29 KOs) by unanimous decision in Tokyo.
Two judges tallied the bout at 117-111, while a third scored it 116-112.
Yaegashi, 30, of Yokohoma, Japan, appeared the fresher of the two combatants, as he used his superior foot and hand speed to consistently outland Sosa, 34, of Mexico City.
A former WBA strawweight titleholder, Yaegashi has won four straight since losing a close decision to compatriot Kazuto Ioka in a 105-pound unification bout in 2011.
Sosa, who had previously made ten defenses of the WBC junior flyweight title from 2007-2009, had been on a roll over the past two years, rising to the No. 4 spot in THE RING's flyweight ratings on the strength of victories over former champions Ulises Solis and Giovani Segura.
The loss is Sosa's first since losing a decision to Pongsaklek Wonjongkam for the same title in 2011.
Earlier in the night, 2012 Olympic middleweight gold medalist Ryota Murata (2-0, 2 KOs) scored a dominant eighth-round technical knockout of Dave Peterson (13-2, 8 KOs). The time of stoppage was 1:20.
Murata, 27, showed impressive physical strength as he wore down the Minnesota resident with constant pressure. The combined records of Murata's two professional opponents is now 34-8-1.
The card also featured No. 9-rated junior flyweight Naoya Inoue with a fifth-round TKO over Jerson Mancio, as well as 118-pounder Ryosuke Iwasa stopping countryman Hiroki Shiino, also in the fifth.
Photo: Kazuhiro Nogi-AFP/Getty Images