Chang Jung-koo
38–4 · 42 recorded bouts · 1980–1991
Chang Jung-koo finished 45% of 38 wins inside the distance — the 37th percentile for light flyweight boxing, where the median is 53%. No reach is on record, so this page compares record rather than measurements.
What is on record
| Reach | not recorded | |
|---|---|---|
| Height | 63″ (160 cm) | |
| Stance | Orthodox | |
| Division | Light Flyweight Boxing | |
| Peak era | 1990s | |
| Country | South Korea |
Wikipedia carries no reach figure for Chang Jung-koo, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
Boxing record
38–4
42 bouts on record
Finish rate
45%
of wins ended inside the distance — light flyweight boxing median 53%, 37th percentile
The career, bout by bout
42 recorded bouts from 1980 to 1991. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
12y
1980–1991
Longest unbeaten run
20
without a loss — draws do not break it
Busiest year
1981
9 bouts
Recorded bouts
42
42 with a date
Fights
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 1991 | L | Muangchai Kittikasem | KO/TKO | 12 |
| 1991 | L | Sot Chitalada | Decision | 12 |
| 1990 | W | Ric Siodora | KO/TKO | 8 |
| 1989 | L | Humberto Gonzalez | Decision | 12 |
| 1989 | W | Amando Velasco | Decision | 10 |
| 1988 | W | Hideyuki Ohashi | KO/TKO | 8 |
| 1987 | W | Isidro Perez | Decision | 12 |
| 1987 | W | Agustin Garcia | KO/TKO | 10 |
| 1987 | W | Efren Pinto | KO/TKO | 6 |
| 1986 | W | Hideyuki Ohashi | KO/TKO | 5 |
| 1986 | W | Francisco Montiel | Decision | 12 |
| 1986 | W | German Torres | Decision | 12 |
| 1985 | W | Jorge Cano | Decision | 12 |
| 1985 | W | Francisco Montiel | Decision | 12 |
| 1985 | W | German Torres | — | 12 |
| 1984 | W | Tadashi Kuramochi | Decision | 12 |
| 1984 | W | Katsuo Tokashiki | KO/TKO | 9 |
| 1984 | W | Sot Chitalada | Decision | 12 |
| 1983 | W | German Torres | Decision | 12 |
| 1983 | W | Masaharu Inami | KO/TKO | 2 |
| 1983 | W | Hilario Zapata | KO/TKO | 3 |
| 1983 | W | Tio Abella | KO/TKO | 2 |
| 1982 | W | Rodrigo Saony | Decision | 10 |
| 1982 | L | Hilario Zapata | — | 15 |
| 1982 | W | Amado Ursua | Decision | 10 |
| 1982 | W | Lukodd Phitiporn | KO/TKO | 5 |
| 1982 | W | Jong Kwan Chang | — | 6 |
| 1981 | W | Alfonso Lopez | KO/TKO | 3 |
| 1981 | W | Chutmongkol Thairungriang | KO/TKO | 2 |
| 1981 | W | Leonardo Paredes | KO/TKO | 6 |
| 1981 | W | Lord Esmero | — | 10 |
| 1981 | W | Oscar Bolivar | Decision | 10 |
| 1981 | W | Miguel Leal | Decision | 10 |
| 1981 | W | Yo Dong Kim | Decision | 6 |
| 1981 | W | Chang Pyo Hong | Decision | 8 |
| 1981 | W | Jin Hyung Park | KO/TKO | 2 |
| 1980 | W | Nam Keun Kang | Decision | 6 |
| 1980 | W | Hi Suo Shin | Decision | 4 |
| 1980 | W | Ho Chul Pyun | Decision | 4 |
| 1980 | W | Hee Kwan Lee | Decision | 4 |
| 1980 | W | Jin Hyung Park | — | 3 |
| 1980 | W | Jung Yul Suh | — | 3 |
15 of these opponents have their own page here.
How this is worked out
- Measurements and records are read from the fighter's English Wikipedia infobox; the fight list is parsed from the article's own results table.
- Reach advantage is (reach − height) ÷ height as a percentage, so fighters of different sizes compare directly.
- Percentiles rank this fighter among the 103 light flyweight boxing fighters in the dataset — chosen because it is the most specific group of at least 30 that this fighter belongs to.
Reach advantage = (reach − height) ÷ height × 100
Source: Chang Jung-koo on English Wikipedia (CC BY-SA 4.0), as of 2026-07-07. Percentiles and derived figures computed here.