HK
Super featherweight · Japan
Hiroshi Kobayashi 61-17-4 10 KO · 1962–2000
Hiroshi Kobayashi is a super featherweight boxer from Japan, born Aug 23, 1944. Record 61-17-4 with 10 knockouts over 1962–2000. World titles: WBA super featherweight (1967–1971), WBC super featherweight (1967–1969). Hiroshi Kobayashi last fought Trash Nakanuma on Sep 1, 2000 and lost by DEC over 6 rounds.
Also: Кобаясі Хіросі · Хироси Кобаяси · هيروشي كوباياشي +3 more هیروشی کوبایاشی · 小林弘 · Кобаяси, Хироси
Born Aug 23, 1944
Country 🇯🇵 Japan
Height 168 cm
Titles WBA super featherweight 1967
Boxerbook rating 1368 ± 235 · inactive since Sep 2000Why here › Confirmed bouts 6 of 82
The record 82 bouts, 1962–2000, newest first. Records under each bout are both boxers going in.
Bouts by source: English Wikipedia · 81, Wikipedia (ja) · 79, Wikipedia (ru) · 1
L
DEC 6/6
Kobayashi 61-16-4 · Nakanuma 15-2-0
L
PTS 10/10 · Japan
Kobayashi 61-15-4 · Kobayashi 16-4-2
L
PTS 8/8 · Prefectural Gymnasium, Nagoya, 🇯🇵
Kobayashi 61-14-4 · Todaka 10-2-0
L
KO 9/10 · Коракуэн-холл, Korakuen Hall, 🇯🇵
Kobayashi 61-13-4 · Arbachakov 17-0-0
L
UD 10/10 · Manila Midtown Ramada Hotel - Malate, Manila, 🇵🇭
Kobayashi 61-12-4 · Bohol 30-13-3
L
UD 10/10 · Morioka, Iwate, 🇯🇵
Kobayashi 61-11-4 · Pascua 35-8-0
L
KO 4/10 · Munhwa Gymnasium, Seoul, 🇰🇷
Kobayashi 61-10-4 · Lee 14-4-0
L
KO 7/10 · Gimnasio Nuevo, Panama City, 🇵🇦
Kobayashi 61-9-4 · Durán 25-0-0
L
Lost WBA & The Ring super-featherweight titles TKO 10/15 · Prefectural Gymnasium, Aomori City, 🇯🇵
Kobayashi 61-8-4 · Morillo —
W
For WBA & The Ring super featherweight titles UD 15/15 · Nihon University Auditorium, Tokyo, 🇯🇵
Kobayashi 60-8-4 · Arredondo 55-4-0
W
SD 10/10 · Nihon University Auditorium, Tokyo, 🇯🇵
Kobayashi 59-8-4 · Saijo 27-5-2
W
Retained WBA & The Ring super-featherweight titles UD 15/15 · Korakuen Hall, Tokyo, 🇯🇵
Kobayashi 58-8-4 · Amaya —
W
Ray Adigun
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Kobayashi 57-8-4 · Adigun —
D
Hiroshi Shoji
SD 10/10 · Tokushima City, 🇯🇵
Kobayashi 57-8-3 · Shoji —
W
Retained WBA & The Ring super-featherweight titles UD 15/15 · Nihon University Auditorium, Tokyo, 🇯🇵
Kobayashi 56-8-3 · Cañete —
W
KO 2/10 · Japan
Kobayashi 55-8-3 · Ramos —
W
Retained WBA & The Ring super-featherweight titles SD 15/15 · Kokugikan, Tokyo, 🇯🇵
Kobayashi 54-8-3 · Amaya —
W
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Kobayashi 53-8-3 · George —
W
Jaime Valladares
Retained WBA, WBC, & The Ring super-featherweight titles UD 15/15 · Nippon Budokan, Tokyo, 🇯🇵
Kobayashi 52-8-3 · Valladares —
L
Rubén Navarro
MD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Kobayashi 52-7-3 · Navarro —
Show all 82 bouts W
Ulises Botero
KO 6/10 · Japan
Kobayashi 51-7-3 · Botero —
L
UD 10/10 · Olympic Auditorium, Los Angeles, 🇺🇸
Kobayashi 51-6-3 · Ramos 21-2-0
D
Retained WBA, WBC, & The Ring super-featherweight titles MD 15/15 · Nippon Budokan, Tokyo, 🇯🇵
Kobayashi 51-6-2 · Barrientos 24-4-1
W
Won WBA, WBC, & The Ring super-featherweight titles KO 12/15 · Kokugikan, Tokyo, 🇯🇵
Kobayashi 50-6-2 · Numata 33-4-0
W
Ki Jin Song
KO 8/10 · Japan
Kobayashi 49-6-2 · Song —
W
Chang Soo Yun
KO 7/10 · Japan
Kobayashi 48-6-2 · Yun —
W
Dony Tesorio
UD 10/10 · Japan
Kobayashi 47-6-2 · Tesorio —
W
Takao Mitsuhashi
Retained Japanese featherweight title UD 10/10 · Japan
Kobayashi 46-6-2 · Mitsuhashi —
W
Vicente Milan Derado
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Kobayashi 45-6-2 · Derado —
W
Kang Il Suh
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Kobayashi 44-6-2 · Suh —
W
Chun Kyo Shin
PTS 10/10 · Japan
Kobayashi 43-6-2 · Shin —
W
Del Kid Rosario
PTS 10/10 · Japan
Kobayashi 42-6-2 · Rosario —
W
Sumio Nobata
Retained Japanese featherweight title PTS 10/10 · Tokoname, 🇯🇵
Kobayashi 41-6-2 · Nobata —
W
Nobuo Chiba
Retained Japanese featherweight title PTS 10/10 · Japan
Kobayashi 40-6-2 · Chiba —
W
Bobby Valdez
RTD 7/10 · Olympic Auditorium, Los Angeles, 🇺🇸
Kobayashi 39-6-2 · Valdez —
W
Delfino Rosales
KO 9/10 · Culiacan, 🇲🇽
Kobayashi 38-6-2 · Rosales —
D
Aurelio Cazares
PTS 10/10 · Sinaloa de Leyva, 🇲🇽
Kobayashi 38-6-1 · Cazares —
L
Pedro Gómez
TKO 7/10 · Nuevo Circo, Caracas, 🇻🇪
Kobayashi 38-5-1 · Gómez —
L
Freddie Rengifo
PTS 10/10 · Nuevo Circo, Caracas, 🇻🇪
Kobayashi 38-4-1 · Rengifo —
D
Jaime Valladares
PTS 10/10 · Quito, 🇪🇨
Kobayashi 38-4-0 · Valladares —
W
Hiroshi Mori
PTS 10/10 · Japan
Kobayashi 37-4-0 · Mori —
W
Shigeo Shioyama
Retained Japanese featherweight title PTS 10/10 · Japan
Kobayashi 36-4-0 · Shioyama —
W
PTS 10/10 · Japan
Kobayashi 35-4-0 · Aoki —
W
Orlando Medina
PTS 10/10 · Japan
Kobayashi 34-4-0 · Medina —
W
Sugar Cane Carreon
PTS 10/10 · Japan
Kobayashi 33-4-0 · Carreon —
W
Hyun Kim
PTS 10/10 · Japan
Kobayashi 32-4-0 · Kim —
W
Atsushi Gunji
Retained Japanese featherweight title PTS 10/10 · Japan
Kobayashi 31-4-0 · Gunji —
W
Kunio Sakata
PTS 10/10 · Japan
Kobayashi 30-4-0 · Sakata —
W
Jong Tae Lim
PTS 10/10 · Ichinomiya, 🇯🇵
Kobayashi 29-4-0 · Lim —
W
Shigeo Shioyama
Retained Japanese featherweight title PTS 10/10 · Japan
Kobayashi 28-4-0 · Shioyama —
W
Soo Bok Kwon
KO 7/10 · Japan
Kobayashi 27-4-0 · Kwon —
W
Yuji Masuko
Retained Japanese featherweight title UD 10/10 · Japan
Kobayashi 26-4-0 · Masuko —
W
Hyun Kim
PTS 10/10 · Maebashi, 🇯🇵
Kobayashi 25-4-0 · Kim —
W
Atsushi Gunji
PTS 10/10 · Japan
Kobayashi 24-4-0 · Gunji —
W
Yuji Masuko
Won Japanese featherweight title PTS 10/10 · Japan
Kobayashi 23-4-0 · Masuko —
W
Dong Chun Lee
PTS 10/10 · Japan
Kobayashi 22-4-0 · Lee —
W
Kwang Joo Lee
PTS 10/10 · Japan
Kobayashi 21-4-0 · Lee —
W
PTS 10/10 · Japan
Kobayashi 20-4-0 · Seki —
W
Porte Villa
PTS 10/10 · Japan
Kobayashi 19-4-0 · Villa —
L
Eduardo Guerrero
PTS 10/10 · Japan
Kobayashi 19-3-0 · Guerrero —
L
Kang Il Suh
PTS 10/10 · Osaka, 🇯🇵
Kobayashi 19-2-0 · Suh —
L
Johnny Jamito
RTD 6/10 · Araneta Coliseum, Quezon City, 🇵🇭
Kobayashi 19-1-0 · Jamito —
L
For vacant Japanese featherweight title PTS 10/10 · Japan
Kobayashi 19-0-0 · Kikuchi —
W
Toshio Shibazaki
PTS 8/8 · Japan
Kobayashi 18-0-0 · Shibazaki —
W
Dommy Balajada
UD 10/10 · Japan
Kobayashi 17-0-0 · Balajada —
W
Yuji Masuko
KO 2/10 · Japan
Kobayashi 16-0-0 · Masuko —
W
Teruo Hino
PTS 8/8 · Japan
Kobayashi 15-0-0 · Hino —
W
Kazuhiro Furuya
MD 6/6 · Kokugikan, Tokyo, 🇯🇵
Kobayashi 14-0-0 · Furuya —
W
Hideo Fukuchi
UD 6/6 · Japan
Kobayashi 13-0-0 · Fukuchi —
W
Isamu Kato
UD 6/6 · Japan
Kobayashi 12-0-0 · Kato —
W
Tsutomu Yoshida
UD 6/6 · Japan
Kobayashi 11-0-0 · Yoshida —
W
Noriyoshi Toyoshima
UD 6/6 · Japan
Kobayashi 10-0-0 · Toyoshima —
W
Hisao Omori
UD 4/4 · Japan
Kobayashi 9-0-0 · Omori —
W
Saburo Yanagi
SD 4/4 · Japan
Kobayashi 8-0-0 · Yanagi —
W
Kazuo Hayasako
UD 4/4 · Korakuen Gym, Tokyo, 🇯🇵
Kobayashi 7-0-0 · Hayasako —
W
Masayoshi Otake
UD 4/4 · Japan
Kobayashi 6-0-0 · Otake —
W
Kazuyoshi Ohashi
UD 4/4 · Japan
Kobayashi 5-0-0 · Ohashi —
W
Kiyokazu Komura
UD 4/4 · Japan
Kobayashi 4-0-0 · Komura —
W
Saburo Yanagi
UD 4/4 · Japan
Kobayashi 3-0-0 · Yanagi —
W
Yukichi Takase
UD 4/4 · Japan
Kobayashi 2-0-0 · Takase —
W
Michio Ishii
TKO 2/4 · Japan
Kobayashi 1-0-0 · Ishii —
W
Hisatsugu Kyoya
MD 4/4 · Korakuen Gym, Tokyo, 🇯🇵
Kobayashi 0-0-0 · Kyoya —
Ratings now Not in any current ranking.
World titles
Facts
What is Hiroshi Kobayashi's professional record? Hiroshi Kobayashi's professional record is 61-17-4 with 10 knockouts.
Who did Hiroshi Kobayashi fight last? Hiroshi Kobayashi last fought Trash Nakanuma on Sep 1, 2000 and lost by DEC over 6 rounds.
Which world titles has Hiroshi Kobayashi held? Hiroshi Kobayashi has held 2 world title reigns: WBA super featherweight (1967–1971), WBC super featherweight (1967–1969). Sources Boxerbook ID 9924 · permanent link boxerbook.com/id/9924 . Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-11. Spot a mistake? Every bout page has a link to report it.