Japan's Kazuto Ioka successfully defended his WBO super flyweight world championship for the fourth time on Friday, winning a 12-round unanimous decision over dogged sixth-ranked compatriot Ryoji Fukunaga.Ioka was content early to watch his opponent probe from a distance at Ota City General Gymnasium before gradually going over to the attack from the second round.The champion chose his spots to land flurries of punches that kept him ahead in points. Although the southpaw Fukunaga was far from outmatched through the first six rounds in his first career world title fight, he suffered some bat…READ FULL ARTICLE