Hiroki Ioka

Hiroki Ioka is a Japanese former professional boxer who competed from 1986 to 1999. He has held world championships in two weight classes, having held the World Boxing Council (WBC) mini-flyweight title from 1987 to 1988, and the World Boxing Association (WBA) light-flyweight title from 1991 to 1992. He was the inaugural WBC mini-flyweight champion, winning the title immediately after the mini-flyweight division was created. He is also known for defeating WBC light-flyweight champion Yuh Myung-woo, handing him the only loss of his career.