Open Boxing

Chang Jung-Koo

Chang Jung-Koo held the WBC light flyweight world title between 1983 and 1988. Chang's highest place in The Ring's annual pound for pound ratings was No. 8, in 1987. Chang first became a world champion aged 20 after winning the WBC light flyweight world title by beating Hilario Zapata.

World title bouts
20
Record in world title bouts (won–lost)
16–4
World titles held
1
Longest world title reign (WBC light flyweight, 1983–1988)
4 years, 9 months

World title reigns and bouts

Jan 1982 – Jan 1992

FlyweightWBC
Light FlyweightWBC
1982age 181983age 191984age 201985age 211986age 221987age 231988age 241989age 251990age 261991age 271992age 28
198219841986198819901992

WonLostDrawn or no contest

Timeline of world title events

  1. 1991

  2. The Ring magazine rates Chang Jung-Koo No. 6 at flyweight in its annual ratings

  3. Muangchai Kittikasem beats Chang Jung-Koo via knockout 12/12

    Flyweight · WBC

  4. 1990

  5. The Ring magazine rates Chang Jung-Koo No. 4 at flyweight in its annual ratings

  6. Sot Chitalada beats Chang Jung-Koo via majority decision 12/12

    Flyweight · WBC

  7. 1989

  8. The Ring magazine rates Chang Jung-Koo No. 5 at flyweight in its annual ratings

  9. Humberto Gonzalez beats Chang Jung-Koo via unanimous decision 12/12

    Light Flyweight · WBC

  10. 1988

  11. The Ring magazine rates Chang Jung-Koo No. 1 at flyweight in its annual ratings

  12. Chang Jung-Koo beats Hideyuki Ohashi via knockout 8/12

    Light Flyweight · WBC

  13. Chang Jung-Koo’s reign as the WBC light flyweight world champion ends

    Light Flyweight · WBC

  14. 1987

  15. The Ring magazine rates Chang Jung-Koo No. 1 at flyweight in its annual ratings

    The Ring magazine rates Chang Jung-Koo No. 8 pound for pound in its annual ratings

  16. Chang Jung-Koo beats Isidro Perez via unanimous decision 12/12

    Light Flyweight · WBC

  17. Chang Jung-Koo beats Agustin Garcia via knockout 10/12

    Light Flyweight · WBC

  18. Chang Jung-Koo beats Efren Pinto via knockout 6/12

    Light Flyweight · WBC

  19. 1986

  20. The Ring magazine rates Chang Jung-Koo No. 1 at flyweight in its annual ratings

  21. Chang Jung-Koo beats Hideyuki Ohashi via knockout 5/12

    Light Flyweight · WBC

  22. Chang Jung-Koo beats Francisco Montiel via unanimous decision 12/12

    Light Flyweight · WBC

  23. Chang Jung-Koo beats German Torres via unanimous decision 12/12

    Light Flyweight · WBC

  24. 1985

  25. The Ring magazine rates Chang Jung-Koo No. 1 at flyweight in its annual ratings

  26. Chang Jung-Koo beats Jorge Cano via unanimous decision 12/12

    Light Flyweight · WBC

  27. Chang Jung-Koo beats Francisco Montiel via unanimous decision 12/12

    Light Flyweight · WBC

  28. Chang Jung-Koo beats German Torres via majority decision 12/12

    Light Flyweight · WBC

  29. 1984

  30. The Ring magazine rates Chang Jung-Koo No. 2 at flyweight in its annual ratings

  31. Chang Jung-Koo beats Tadashi Kuramochi via unanimous decision 12/12

    Light Flyweight · WBC

  32. Chang Jung-Koo beats Katsuo Tokashiki via knockout 9/12

    Light Flyweight · WBC

  33. Chang Jung-Koo beats Sot Chitalada via unanimous decision 12/12

    Light Flyweight · WBC

  34. 1983

  35. The Ring magazine rates Chang Jung-Koo No. 2 at flyweight in its annual ratings

  36. Chang Jung-Koo beats German Torres via unanimous decision 12/12

    Light Flyweight · WBC

  37. Chang Jung-Koo beats Masaharu Inami via knockout 2/12

    Light Flyweight · WBC

  38. Chang Jung-Koo beats Hilario Zapata via knockout 3/15

    Light Flyweight · WBC

  39. 1982

  40. The Ring magazine rates Chang Jung-Koo No. 10 at flyweight in its annual ratings

  41. Hilario Zapata beats Chang Jung-Koo via split decision 15/15

    Light Flyweight · WBC