Hiroshi Kobayashi
61–10 · 74 recorded bouts · 1962–1971
Hiroshi Kobayashi finished 16% of 61 wins inside the distance — the 2nd percentile for super featherweight 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 | 66″ (167.6 cm) | |
| Stance | Orthodox | |
| Division | Super Featherweight Boxing competed at 2: featherweight, super featherweight — compared here against the last | |
| Peak era | 1970s | |
| Country | Japan |
Wikipedia carries no reach figure for Hiroshi Kobayashi, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.
Record
Boxing record
61–10
75 bouts on record
Finish rate
16%
of wins ended inside the distance — super featherweight boxing median 57%, 2nd percentile
The career, bout by bout
74 recorded bouts from 1962 to 1971. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
10y
1962–1971
Longest unbeaten run
15
without a loss — draws do not break it
Busiest year
1966
12 bouts
Recorded bouts
74
74 with a date
Fights
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 1971 | L | Roberto Durán | KO/TKO | 7 |
| 1971 | L | Alfredo Marcano | KO/TKO | 10 |
| 1971 | W | Ricardo Arredondo | Decision | 15 |
| 1970 | W | Shozo Saijo | Decision | 10 |
| 1970 | W | Antonio Amaya | Decision | 15 |
| 1970 | W | Ray Adigun | Decision | 10 |
| 1970 | D | Hiroshi Shoji | Decision | 10 |
| 1969 | W | Carlos Cañete | Decision | 15 |
| 1969 | W | Victor Ramos | KO/TKO | 2 |
| 1969 | W | Antonio Amaya | Decision | 15 |
| 1969 | W | Turori George | Decision | 10 |
| 1968 | W | Jaime Valladares | Decision | 15 |
| 1968 | L | Rubén Navarro | Decision | 10 |
| 1968 | W | Ulises Botero | KO/TKO | 6 |
| 1968 | L | Mando Ramos | Decision | 10 |
| 1968 | D | Rene Barrientos | Decision | 15 |
| 1967 | W | Yoshiaki Numata | KO/TKO | 12 |
| 1967 | W | Ki Jin Song | KO/TKO | 8 |
| 1967 | W | Chang Soo Yun | KO/TKO | 7 |
| 1967 | W | Dony Tesorio | Decision | 10 |
| 1967 | W | Takao Mitsuhashi | Decision | 10 |
| 1967 | W | Vicente Milan Derado | Decision | 10 |
| 1967 | W | Kang Il Suh | Decision | 10 |
| 1967 | W | Chun Kyo Shin | Decision | 10 |
| 1966 | W | Del Kid Rosario | Decision | 10 |
| 1966 | W | Sumio Nobata | Decision | 10 |
| 1966 | W | Nobuo Chiba | Decision | 10 |
| 1966 | W | Bobby Valdez | KO/TKO | 7 |
| 1966 | W | Delfino Rosales | KO/TKO | 9 |
| 1966 | D | Aurelio Cazares | Decision | 10 |
| 1966 | L | Pedro Gómez | KO/TKO | 7 |
| 1966 | L | Freddie Rengifo | Decision | 10 |
| 1966 | D | Jaime Valladares | Decision | 10 |
| 1966 | W | Hiroshi Mori | Decision | 10 |
| 1966 | W | Shigeo Shioyama | Decision | 10 |
| 1966 | W | Katsutoshi Aoki | Decision | 10 |
| 1965 | W | Orlando Medina | Decision | 10 |
| 1965 | W | Sugar Cane Carreon | Decision | 10 |
| 1965 | W | Hyun Kim | Decision | 10 |
| 1965 | W | Atsushi Gunji | Decision | 10 |
| 1965 | W | Kunio Sakata | Decision | 10 |
| 1965 | W | Jong Tae Lim | Decision | 10 |
| 1965 | W | Shigeo Shioyama | Decision | 10 |
| 1965 | W | Soo Bok Kwon | KO/TKO | 7 |
| 1965 | W | Yuji Masuko | Decision | 10 |
| 1964 | W | Hyun Kim | Decision | 10 |
| 1964 | W | Atsushi Gunji | Decision | 10 |
| 1964 | W | Yuji Masuko | Decision | 10 |
| 1964 | W | Dong Chun Lee | Decision | 10 |
| 1964 | W | Kwang Joo Lee | Decision | 10 |
| 1964 | W | Mitsunori Seki | Decision | 10 |
| 1964 | W | Porte Villa | Decision | 10 |
| 1964 | L | Eduardo Guerrero | Decision | 10 |
| 1964 | L | Kang Il Suh | Decision | 10 |
| 1963 | L | Johnny Jamito | KO/TKO | 6 |
| 1963 | L | Manzo Kikuchi | Decision | 10 |
| 1963 | W | Toshio Shibazaki | Decision | 8 |
| 1963 | W | Dommy Balajada | Decision | 10 |
| 1963 | W | Yuji Masuko | KO/TKO | 2 |
| 1963 | W | Teruo Hino | Decision | 8 |
Showing the 60 most recent of 74 recorded bouts.
7 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 142 super featherweight 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: Hiroshi Kobayashi (boxer) on English Wikipedia (CC BY-SA 4.0), as of 2026-07-08. Percentiles and derived figures computed here.