Jung Koo Chang pugile

Chang Jung-Koo (Hangul: 장정구, Hanja: 張正九) (born February 4, 1963 in Busan, South Korea) is a South Korean former light flyweight boxing champion. He is known by his nickname, The Korean Hawk.Chang took the tough road to becoming a world champion. In Chang's 15th pro fight, he faced former WBA flyweight champion Alfonso Lopez. Chang knocked out Lopez in the 3rd round. Next, Chang faced future IBF flyweight champion Jong-Kwan Chung, stopping Chung in the 6th round. In his 18th fight, and last before challenging for his first world title, Chang scored a 10 round unanimous decision over former WBC light flyweight champion Amado Ursua.In Chang's first world title try, he lost to Hilario Zapata of Panama by a 15 round split decision in 1982, by scores of 148-145, 142-144 and 144-147. However, in a rematch held in Seoul, he avenged that loss and became WBC light flyweight world champion by knocking out Zapata at 2:46 of the 3rd round.Chang then went on to establish a then-world record for the most defenses as world light flyweight champion, defending the title successfully 16 times between 1983 and 1988 when he retired.In his first defense, he defeated Masaharu Inami and followed it with a win over future champion German Torres.In 1984, he defeated future champion, Sot Chitalada, former champion Katsuo Tokashiki and Tadashi Kuramochi.