Katsuya Onizuka 鬼塚 勝也
24–1 · 25 recorded bouts · 1988–1994
Katsuya Onizuka 鬼塚 勝也 finished 71% of 24 wins inside the distance — the 81st percentile for super flyweight boxing, where the median is 57%. No reach is on record, so this page compares record rather than measurements.
What is on record
| Reach | not recorded | |
|---|---|---|
| Height | 68″ (172.7 cm) | |
| Stance | Orthodox | |
| Division | Super Flyweight Boxing | |
| Peak era | 1990s | |
| Country | Japan |
Wikipedia carries no reach figure for Katsuya Onizuka 鬼塚 勝也, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
Boxing record
24–1
25 bouts on record
Finish rate
71%
of wins ended inside the distance — super flyweight boxing median 57%, 81st percentile
The career, bout by bout
25 recorded bouts from 1988 to 1994. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
7y
1988–1994
Longest unbeaten run
23
without a loss — draws do not break it
Busiest year
1988
6 bouts
Recorded bouts
25
25 with a date
Fights
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 1994 | L | Lee Hyung-chul | KO/TKO | 9 |
| 1994 | W | Seung Koo Lee | Decision | 12 |
| 1993 | W | Thanomsak Sithbaobay | Decision | 12 |
| 1993 | W | Jae Shin Lim | Decision | 12 |
| 1992 | W | Armando Castro | Decision | 12 |
| 1992 | W | Kenji Matsumura | KO/TKO | 5 |
| 1992 | W | Thanomsak Sithbaobay | Decision | 12 |
| 1991 | W | Chan Woo Park | KO/TKO | 7 |
| 1991 | W | Suzuharu Kitazawa | KO/TKO | 5 |
| 1991 | W | Shunichi Nakajima | Decision | 10 |
| 1990 | W | Tomohiko Yokoyama | KO/TKO | 1 |
| 1990 | W | Shunichi Nakajima | KO/TKO | 10 |
| 1990 | W | Tatsuya Sugi | KO/TKO | 7 |
| 1990 | W | Rex Rapiso | KO/TKO | 1 |
| 1989 | W | Kyung Min Ahn | KO/TKO | 1 |
| 1989 | W | Dok Hyun Kim | KO/TKO | 5 |
| 1989 | W | Sang Won Lee | KO/TKO | 4 |
| 1989 | W | Masao Kawanishi | KO/TKO | 2 |
| 1989 | W | Yutaka Sakamoto | KO/TKO | 2 |
| 1988 | W | Mitsumasa Ikeda | Decision | 6 |
| 1988 | W | Ryoji Take | KO/TKO | 3 |
| 1988 | W | Tetsuya Esu | KO/TKO | 3 |
| 1988 | W | Shigeru Ito | KO/TKO | 1 |
| 1988 | W | Satoshi Kada | KO/TKO | 1 |
| 1988 | W | Shoji Akiyama | KO/TKO | 1 |
3 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 114 super 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: Katsuya Onizuka on English Wikipedia (CC BY-SA 4.0), as of 2026-07-07. Percentiles and derived figures computed here.