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Super featherweight boxing · 1970s

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

Measurements
Reachnot recorded
Height66″ (167.6 cm)
StanceOrthodox
DivisionSuper Featherweight Boxing
competed at 2: featherweight, super featherweight — compared here against the last
Peak era1970s
CountryJapan

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.

1970 win vs Noriyoshi Toyoshima (1962)win vs Hisao Omori (1962)win vs Saburo Yanagi (1962)win vs Kazuo Hayasako (1962)win vs Masayoshi Otake (1962)win vs Kazuyoshi Ohashi (1962)win vs Kiyokazu Komura (1962)win vs Yukichi Takase (1962)win vs Michio Ishii (1962)win vs Hisatsugu Kyoya (1962)loss vs Johnny Jamito (1963)loss vs Manzo Kikuchi (1963)win vs Toshio Shibazaki (1963)win vs Dommy Balajada (1963)win vs Yuji Masuko (1963)win vs Teruo Hino (1963)win vs Kazuhiro Furuya (1963)win vs Hideo Fukuchi (1963)win vs Isamu Kato (1963)win vs Tsutomu Yoshida (1963)win vs Hyun Kim (1964)win vs Atsushi Gunji (1964)win vs Yuji Masuko (1964)win vs Dong Chun Lee (1964)win vs Kwang Joo Lee (1964)win vs Mitsunori Seki (1964)win vs Porte Villa (1964)loss vs Eduardo Guerrero (1964)loss vs Kang Il Suh (1964)win vs Orlando Medina (1965)win vs Sugar Cane Carreon (1965)win vs Hyun Kim (1965)win vs Atsushi Gunji (1965)win vs Kunio Sakata (1965)win vs Jong Tae Lim (1965)win vs Shigeo Shioyama (1965)win vs Soo Bok Kwon (1965)win vs Yuji Masuko (1965)win vs Del Kid Rosario (1966)win vs Sumio Nobata (1966)win vs Nobuo Chiba (1966)win vs Bobby Valdez (1966)win vs Delfino Rosales (1966)draw vs Aurelio Cazares (1966)loss vs Pedro Gómez (1966)loss vs Freddie Rengifo (1966)draw vs Jaime Valladares (1966)win vs Hiroshi Mori (1966)win vs Shigeo Shioyama (1966)win vs Katsutoshi Aoki (1966)win vs Yoshiaki Numata (1967)win vs Ki Jin Song (1967)win vs Chang Soo Yun (1967)win vs Dony Tesorio (1967)win vs Takao Mitsuhashi (1967)win vs Vicente Milan Derado (1967)win vs Kang Il Suh (1967)win vs Chun Kyo Shin (1967)win vs Jaime Valladares (1968)loss vs Rubén Navarro (1968)win vs Ulises Botero (1968)loss vs Mando Ramos (1968)draw vs Rene Barrientos (1968)win vs Carlos Cañete (1969)win vs Victor Ramos (1969)win vs Antonio Amaya (1969)win vs Turori George (1969)win vs Shozo Saijo (1970)win vs Antonio Amaya (1970)win vs Ray Adigun (1970)draw vs Hiroshi Shoji (1970)loss vs Roberto Durán (1971)loss vs Alfredo Marcano (1971)win vs Ricardo Arredondo (1971)
winlossdraw / NC1962–1971

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

By knockout: 10 (16%)By decision: 51 (84%)
  • By knockout 16%
  • By decision 84%

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

YearResultOpponentMethodRd
1971 L Roberto Durán KO/TKO7
1971 L Alfredo Marcano KO/TKO10
1971 W Ricardo Arredondo Decision15
1970 W Shozo Saijo Decision10
1970 W Antonio Amaya Decision15
1970 W Ray Adigun Decision10
1970 D Hiroshi Shoji Decision10
1969 W Carlos Cañete Decision15
1969 W Victor Ramos KO/TKO2
1969 W Antonio Amaya Decision15
1969 W Turori George Decision10
1968 W Jaime Valladares Decision15
1968 L Rubén Navarro Decision10
1968 W Ulises Botero KO/TKO6
1968 L Mando Ramos Decision10
1968 D Rene Barrientos Decision15
1967 W Yoshiaki Numata KO/TKO12
1967 W Ki Jin Song KO/TKO8
1967 W Chang Soo Yun KO/TKO7
1967 W Dony Tesorio Decision10
1967 W Takao Mitsuhashi Decision10
1967 W Vicente Milan Derado Decision10
1967 W Kang Il Suh Decision10
1967 W Chun Kyo Shin Decision10
1966 W Del Kid Rosario Decision10
1966 W Sumio Nobata Decision10
1966 W Nobuo Chiba Decision10
1966 W Bobby Valdez KO/TKO7
1966 W Delfino Rosales KO/TKO9
1966 D Aurelio Cazares Decision10
1966 L Pedro Gómez KO/TKO7
1966 L Freddie Rengifo Decision10
1966 D Jaime Valladares Decision10
1966 W Hiroshi Mori Decision10
1966 W Shigeo Shioyama Decision10
1966 W Katsutoshi Aoki Decision10
1965 W Orlando Medina Decision10
1965 W Sugar Cane Carreon Decision10
1965 W Hyun Kim Decision10
1965 W Atsushi Gunji Decision10
1965 W Kunio Sakata Decision10
1965 W Jong Tae Lim Decision10
1965 W Shigeo Shioyama Decision10
1965 W Soo Bok Kwon KO/TKO7
1965 W Yuji Masuko Decision10
1964 W Hyun Kim Decision10
1964 W Atsushi Gunji Decision10
1964 W Yuji Masuko Decision10
1964 W Dong Chun Lee Decision10
1964 W Kwang Joo Lee Decision10
1964 W Mitsunori Seki Decision10
1964 W Porte Villa Decision10
1964 L Eduardo Guerrero Decision10
1964 L Kang Il Suh Decision10
1963 L Johnny Jamito KO/TKO6
1963 L Manzo Kikuchi Decision10
1963 W Toshio Shibazaki Decision8
1963 W Dommy Balajada Decision10
1963 W Yuji Masuko KO/TKO2
1963 W Teruo Hino Decision8

Showing the 60 most recent of 74 recorded bouts.

7 of these opponents have their own page here.

How this is worked out

  1. Measurements and records are read from the fighter's English Wikipedia infobox; the fight list is parsed from the article's own results table.
  2. Reach advantage is (reach − height) ÷ height as a percentage, so fighters of different sizes compare directly.
  3. 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

Full methodology →

Source: Hiroshi Kobayashi (boxer) on English Wikipedia (CC BY-SA 4.0), as of 2026-07-08. Percentiles and derived figures computed here.

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.