Kim Sung-jun
28–14 · 45 recorded bouts · 1971–1982
28–14–6
Kim Sung-jun finished 46% of 28 wins inside the distance — the 48th percentile for flyweight boxing, where the median is 47%. No reach is on record, so this page compares record rather than measurements.
SOURCE·Kim Sung-jun — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07
How this record is compiled
- Measurements come from the fighter's English Wikipedia infobox; the bout list is parsed from the results table on the same article, read on 2026-07-07. Boxing tables are read by header name and MMA records by the fixed column order of the
MMA recordtemplate — two different parsers, because reading MMA rows as a boxing table returns a fighter's boxing record in place of their real one. - A bout enters the ledger with whatever fields the source states: result, opponent, method, round, year. Any field the source leaves empty stays empty here. A date that cannot be established is left blank rather than inferred, and the bout is still counted.
- A no contest is counted and printed as a no contest. It is never folded into the wins, the losses or the draws, and it never disappears to make a total balance.
- Where the article's infobox total disagrees with its own results table, both figures are published and each is labelled with where it came from. Nothing is averaged and nothing is reconciled against a second database.
- Percentiles rank this fighter among the 168 flyweight boxing fighters in the dataset — the most specific group of at least 30 that this fighter belongs to.
Bout record
Every bout the article's own results table lists, in order. A dash is a field the source leaves empty — it is not a zero and it is not a guess.
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 1982 | L | Suk Chul Bae | Decision | 10 |
| 1981 | W | Kiyoshi Nagashima | KO/TKO | 9 |
| 1981 | L | Hong Soo Yang | Decision | 10 |
| 1981 | L | Hector Meléndez | Decision | 10 |
| 1981 | L | Rafael Orono | Decision | 10 |
| 1981 | L | Miguel Canto | Decision | 10 |
| 1981 | W | Bemi Dayodan | KO/TKO | 1 |
| 1980 | W | Arnel Arrozal | Decision | 10 |
| 1980 | L | Shoji Oguma | Decision | 15 |
| 1980 | D | Hong Soo Yang | Draw | 6 |
| 1980 | L | Lee Seung-hoon | Decision | 10 |
| 1980 | L | Shigeo Nakajima | Decision | 15 |
| 1979 | W | Hector Meléndez | Decision | 15 |
| 1979 | W | Siony Carupo | Decision | 15 |
| 1979 | W | Jiro Takada | Decision | 10 |
| 1979 | W | Peter Siscon | KO/TKO | 4 |
| 1978 | W | Ric Barimbad | Decision | 10 |
| 1978 | W | Netrnoi Sor Vorasingh | KO/TKO | 3 |
| 1978 | L | Sang Il Jung | Decision | 12 |
| 1978 | W | Eddie Carazal | KO/TKO | 10 |
| 1978 | D | Franco Torregoza | Decision | 10 |
| 1978 | W | Kazunori Tenryu | KO/TKO | 3 |
| 1977 | W | Kyung Ju Ha | KO/TKO | 5 |
| 1977 | W | Demetrio Alferez | KO/TKO | 7 |
| 1977 | W | Ryuji Iwamoto | Decision | 10 |
| 1977 | D | Yong Hyun Kim | Decision | 10 |
| 1977 | L | Kazunori Tenryu | Decision | 10 |
| 1977 | W | Mak Dong Kim | Decision | 10 |
| 1977 | L | Shoji Oguma | Decision | 10 |
| 1977 | W | Little Park | Decision | 10 |
| 1976 | W | Suriya Patumwadee | KO/TKO | 5 |
| 1976 | W | Ki Hyung Lee | KO/TKO | 4 |
| 1976 | D | Young Hwan Kim | Decision | 8 |
| 1976 | W | Little Park | Decision | 10 |
| 1975 | W | Ki Hyung Lee | Decision | 10 |
| 1975 | W | Myung An Moon | Decision | 10 |
| 1975 | W | Han Soo Lee | KO/TKO | 3 |
| 1975 | L | Little Park | Decision | 10 |
| 1975 | W | Chun Woo Lee | Decision | 8 |
| 1975 | W | Yong Keun Lee | KO/TKO | 2 |
| 1974 | W | Yung Woon Lee | Decision | 4 |
| 1974 | W | Shi Ho Kim | KO/TKO | 5 |
| 1974 | L | Hak Soo Suh | Decision | 4 |
| 1972 | D | In Soo Lim | Decision | 4 |
| 1971 | L | In Soo Lim | Decision | 4 |
7 of these opponents have their own page here.
SOURCE·Kim Sung-jun — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07
What is on record
| Reach | not recorded | |
|---|---|---|
| Height | 62″ (157.5 cm) | |
| Stance | Orthodox | |
| Division | Flyweight Boxing competed at 2: light flyweight, flyweight — compared here against the last | |
| Most active decade | 1970s — 33 of 45 dated bouts | |
| Country | South Korea |
Wikipedia carries no reach figure for Kim Sung-jun, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
Boxing record
28–14
48 bouts on record
Finish rate
46%
of wins ended inside the distance — flyweight boxing median 47%, 48th percentile
The career, bout by bout
45 recorded bouts from 1971 to 1982. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
12y
1971–1982
Longest unbeaten run
8
without a loss — draws do not break it
Busiest year
1977
8 bouts
Recorded bouts
45
45 with a date
What this record does and does not say
- What is Kim Sung-jun's record?
- 28–14–6 in boxing. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 45 bouts individually.
- Does a no contest change a record here?
- No. A no contest is not a win, a loss or a draw, and it is never folded into one. It is counted and printed separately, so a 20–0 record with two no contests is shown as exactly that rather than as 22–0 or as 20–0 with the no contests dropped. The same applies to a bout overturned after the fact where the source records the change.
- What happens when sources disagree about a fight?
- This site publishes one source — the fighter's English Wikipedia article, read on the date printed under every table — and it does not silently reconcile that against anyone else's database. Where the article's own infobox total and its own results table disagree, both are shown and the page says which one each figure came from. Nothing is averaged, and no field is filled in from a second source to make a total balance.
Where this record leads
The 170 flyweight boxing fighters this record is ranked against, and the distribution Sung-jun sits inside.
170 FIGHTERS 1970s boxing33 of these bouts fall in the 1970s. This is what the rest of that decade's records look like.
115 FIGHTERS Longest unbeaten runsKim Sung-jun went 8 without a loss. This is where that sits against every run on the site.
LEADERBOARD