Boxers / Chang Jung-koo / Boxerbook rating
Chang Jung-koo: Boxerbook rating Chang Jung-koo has a Boxerbook rating of 1860 ± 236 from 43 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Nov 1991 (no bout for 12 months).
Rating 1860 ± 236
Place not listed
Counted bouts 43
Unknown opponents 25 of 43
Schedule, career 1345
Schedule, 36 months no bouts
Form, last 5 0.6 of 3.5
Data confidence 26%
Status inactive since Nov 1991
Rating over time high 2056 · low 1706 Nov 1980 Oct 1992 μ at the end of each month with a bout, and of every month while active. Red dot: latest.
Bouts behind the rating Every counted bout, newest first: the change in μ it caused (green up, red down), its weight and the rating after it. Unknown opponents: 25 of 43 bouts.
L
Nov 24, 1991 · MD 12/12 · weight ×1.65 · opponent 1983
L
May 18, 1991 · TKO 12/12 · weight ×1.65 · opponent 1968
L
Nov 24, 1990 · MD 12/12 · weight ×1.65 · opponent 1994
W
Sep 15, 1990 · TKO 8/12 · weight ×1.10 · opponent 1543
L
For WBC light-flyweight title Dec 9, 1989 · UD 12/12 · weight ×1.65 · opponent 1974
W
Amando Velasco (no page: counted as 1100)
Aug 27, 1989 · UD 10/10 · weight ×1.05
W
For WBC light-flyweight title Jun 27, 1988 · TKO 8/12 · weight ×1.65 · opponent 1612
W
For WBC light-flyweight title Dec 13, 1987 · UD 12/12 · weight ×1.65 · opponent 1718
W
Agustin Garcia (no page: counted as 1100)
Retained WBC light-flyweight title Jun 28, 1987 · TKO 10/12 · weight ×1.65
W
Efren Pinto (no page: counted as 1100)
Retained WBC light-flyweight title Apr 19, 1987 · TKO 6/12 · weight ×1.65
W
For WBC light-flyweight title Dec 14, 1986 · TKO 5/12 · weight ×1.65 · opponent 1473
W
Francisco Montiel (no page: counted as 1100)
Retained WBC light-flyweight title Sep 13, 1986 · UD 12/12 · weight ×1.65
W
Retained WBC light-flyweight title Apr 13, 1986 · UD 12/12 · weight ×1.65 · opponent 1597
W
Jorge Cano (no page: counted as 1100)
Retained WBC light-flyweight title Nov 10, 1985 · UD 12/12 · weight ×1.65
W
Francisco Montiel (no page: counted as 1100)
Retained WBC light-flyweight title Aug 4, 1985 · UD 12/12 · weight ×1.65
W
Retained WBC light-flyweight title Apr 27, 1985 · MD 12/12 · weight ×1.65 · opponent 1629
W
Tadashi Kuramochi (no page: counted as 1100)
Retained WBC light-flyweight title Dec 15, 1984 · UD 12/12 · weight ×1.65
W
For WBC light flyweight title Aug 18, 1984 · TKO 9/12 · weight ×1.65 · opponent 1699
W
Retained WBC light-flyweight title Mar 31, 1984 · UD 12/12 · weight ×1.65 · opponent 1664
W
Retained WBC light-flyweight title Sep 10, 1983 · UD 12/12 · weight ×1.65 · opponent 1486
Show all 43 counted bouts W
Masaharu Inami (no page: counted as 1100)
Retained WBC light-flyweight title Jun 11, 1983 · KO 2/12 · weight ×1.65
W
Won WBC light flyweight title Mar 26, 1983 · TKO 3/15 · weight ×1.65 · opponent 1907
W
Tio Abella (no page: counted as 1100)
Feb 6, 1983 · KO 2/10 · weight ×1.05
W
Rodrigo Saony (no page: counted as 1100)
Dec 5, 1982 · PTS 10/10 · weight ×1.05
L
For WBC light flyweight title Sep 18, 1982 · SD 15/15 · weight ×1.65 · opponent 1843
W
Jul 10, 1982 · UD 10/10 · weight ×1.05 · opponent 1612
W
Lukodd Phitiporn (no page: counted as 1100)
Apr 4, 1982 · TKO 5/10 · weight ×1.05
W
Feb 10, 1982 · RTD 6/10 · weight ×1.05 · opponent 1134
W
Alfonso Lopez (no page: counted as 1100)
Dec 26, 1981 · KO 3/8 · weight ×1.00
W
Chutmongkol Thairungriang (no page: counted as 1100)
Nov 18, 1981 · KO 2/10 · weight ×1.05
W
Leonardo Paredes (no page: counted as 1100)
Oct 11, 1981 · KO 6/10 · weight ×1.05
W
Lord Esmero (no page: counted as 1100)
Sep 4, 1981 · UD 10/10 · weight ×1.05
W
Oscar Bolivar (no page: counted as 1100)
Jun 7, 1981 · PTS 10/10 · weight ×1.05
W
Miguel Leal (no page: counted as 1100)
Apr 25, 1981 · PTS 10/10 · weight ×1.05
W
Yo Dong Kim (no page: counted as 1100)
Mar 29, 1981 · PTS 6/6 · weight ×0.90
W
Chang Pyo Hong (no page: counted as 1100)
Jan 23, 1981 · PTS 8/8 · weight ×1.00
W
Jin Hyung Park (no page: counted as 1100)
Jan 11, 1981 · KO 2/6 · weight ×0.90
W
Nam Keun Kang (no page: counted as 1100)
Dec 7, 1980 · PTS 6/6 · weight ×0.90
W
Nov 29, 1980 · PTS 4/4 · weight ×0.80 · opponent 1500
W
Ho Chul Pyun (no page: counted as 1100)
Nov 23, 1980 · PTS 4/4 · weight ×0.80
W
Hee Kwan Lee (no page: counted as 1100)
Nov 22, 1980 · PTS 4/4 · weight ×0.80
W
Jin Hyung Park (no page: counted as 1100)
Nov 19, 1980 · TKO 3/4 · weight ×0.80
W
Jung Yul Suh (no page: counted as 1100)
Nov 17, 1980 · KO 3/4 · weight ×0.80
Publishers and Boxerbook Consensus: no publisher lists for the division (a list without them counts as 16).
How the Boxerbook rating works · Chang Jung-koo: record and titles