Boxers / Hiroshi Kobayashi / Boxerbook rating

Hiroshi Kobayashi: Boxerbook rating

Hiroshi Kobayashi has a Boxerbook rating of 1386 ± 240 from 81 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Jul 1998 (no bout for 12 months).

Rating1386 ± 240
Placenot listed
Counted bouts81
Unknown opponents61 of 81
Schedule, career1228
Schedule, 36 monthsno bouts
Form, last 50.0 of 3.5
Data confidence7%
Statusinactive since Jul 1998

Rating over time

high 1833 · low 1386Jul 1962Jul 1998

μ at the end of each month with a bout, and of every month while active. Red dot: latest.

Bouts behind the rating

Every counted bout, newest first: the change in μ it caused (green up, red down), its weight and the rating after it. Unknown opponents: 61 of 81 bouts.

L
Jul 4, 1998 · PTS 10/10 · weight ×1.05 · opponent 1568
L
Apr 29, 1998 · PTS 8/8 · weight ×1.00 · opponent 1615
L
May 16, 1994 · KO 9/10 · weight ×1.05 · opponent 2256
L
Dec 16, 1993 · UD 10/10 · weight ×1.05 · opponent 1510
L
Oct 15, 1993 · UD 10/10 · weight ×1.05 · opponent 1672
L
Jun 26, 1993 · KO 4/10 · weight ×1.05 · opponent 1494
−126
→ 1578
L
Oct 16, 1971 · KO 7/10 · weight ×1.05 · opponent 1908
L
Lost WBA & The Ring super-featherweight titles
Jul 29, 1971 · TKO 10/15 · weight ×1.65 · opponent 1689
W
For WBA & The Ring super featherweight titles
Mar 4, 1971 · UD 15/15 · weight ×1.65 · opponent 1749
W
Dec 3, 1970 · SD 10/10 · weight ×1.05 · opponent 1610
W
Retained WBA & The Ring super-featherweight titles
Aug 23, 1970 · UD 15/15 · weight ×1.65 · opponent 1437
W
Ray Adigun (no page: counted as 1100)
Jun 21, 1970 · UD 10/10 · weight ×1.05
D
Hiroshi Shoji (no page: counted as 1100)
Feb 15, 1970 · SD 10/10 · weight ×1.05
W
Retained WBA & The Ring super-featherweight titles
Nov 9, 1969 · UD 15/15 · weight ×1.65 · opponent 1500
W
Victor Ramos (no page: counted as 1100)
Jul 7, 1969 · KO 2/10 · weight ×1.05
W
Retained WBA & The Ring super-featherweight titles
Apr 6, 1969 · SD 15/15 · weight ×1.65 · opponent 1540
W
Jan 27, 1969 · UD 10/10 · weight ×1.05 · opponent 1500
W
Jaime Valladares (no page: counted as 1100)
Retained WBA, WBC, & The Ring super-featherweight titles
Oct 5, 1968 · UD 15/15 · weight ×1.65
L
Rubén Navarro (no page: counted as 1100)
Aug 26, 1968 · MD 10/10 · weight ×1.05
W
Ulises Botero (no page: counted as 1100)
Jul 21, 1968 · KO 6/10 · weight ×1.05
Show all 81 counted bouts
L
Jun 20, 1968 · UD 10/10 · weight ×1.05 · opponent 1637
D
For WBA, WBC, & The Ring super-featherweight titles
Mar 30, 1968 · MD 15/15 · weight ×1.65 · opponent 1571
W
Won WBA, WBC, & The Ring super-featherweight titles
Dec 14, 1967 · KO 12/15 · weight ×1.65 · opponent 1755
W
Ki Jin Song (no page: counted as 1100)
Oct 16, 1967 · KO 8/10 · weight ×1.05
W
Chang Soo Yun (no page: counted as 1100)
Sep 4, 1967 · KO 7/10 · weight ×1.05
W
Dony Tesorio (no page: counted as 1100)
Jun 26, 1967 · UD 10/10 · weight ×1.05
W
Takao Mitsuhashi (no page: counted as 1100)
Retained Japanese featherweight title
May 8, 1967 · UD 10/10 · weight ×1.10
W
Vicente Milan Derado (no page: counted as 1100)
Feb 27, 1967 · UD 10/10 · weight ×1.05
W
Kang Il Suh (no page: counted as 1100)
Feb 2, 1967 · UD 10/10 · weight ×1.05
W
Chun Kyo Shin (no page: counted as 1100)
Jan 16, 1967 · PTS 10/10 · weight ×1.05
W
Del Kid Rosario (no page: counted as 1100)
Nov 28, 1966 · PTS 10/10 · weight ×1.05
W
Sumio Nobata (no page: counted as 1100)
Retained Japanese featherweight title
Nov 10, 1966 · PTS 10/10 · weight ×1.10
W
Nobuo Chiba (no page: counted as 1100)
Retained Japanese featherweight title
Oct 10, 1966 · PTS 10/10 · weight ×1.10
W
Bobby Valdez (no page: counted as 1100)
Aug 18, 1966 · RTD 7/10 · weight ×1.05
W
Delfino Rosales (no page: counted as 1100)
Jul 31, 1966 · KO 9/10 · weight ×1.05
D
Aurelio Cazares (no page: counted as 1100)
Jul 10, 1966 · PTS 10/10 · weight ×1.05
L
Pedro Gómez (no page: counted as 1100)
Jun 24, 1966 · TKO 7/10 · weight ×1.05
L
Freddie Rengifo (no page: counted as 1100)
May 30, 1966 · PTS 10/10 · weight ×1.05
D
Jaime Valladares (no page: counted as 1100)
May 14, 1966 · PTS 10/10 · weight ×1.05
W
Hiroshi Mori (no page: counted as 1100)
Mar 31, 1966 · PTS 10/10 · weight ×1.05
W
Shigeo Shioyama (no page: counted as 1100)
Retained Japanese featherweight title
Feb 28, 1966 · PTS 10/10 · weight ×1.10
W
Jan 27, 1966 · PTS 10/10 · weight ×1.05 · opponent 1348
W
Orlando Medina (no page: counted as 1100)
Dec 9, 1965 · PTS 10/10 · weight ×1.05
W
Sugar Cane Carreon (no page: counted as 1100)
Oct 29, 1965 · PTS 10/10 · weight ×1.05
W
Hyun Kim (no page: counted as 1100)
Sep 23, 1965 · PTS 10/10 · weight ×1.05
W
Atsushi Gunji (no page: counted as 1100)
Retained Japanese featherweight title
Aug 30, 1965 · PTS 10/10 · weight ×1.10
W
Kunio Sakata (no page: counted as 1100)
Jul 18, 1965 · PTS 10/10 · weight ×1.05
W
Jong Tae Lim (no page: counted as 1100)
Jun 27, 1965 · PTS 10/10 · weight ×1.05
W
Shigeo Shioyama (no page: counted as 1100)
Retained Japanese featherweight title
May 9, 1965 · PTS 10/10 · weight ×1.10
W
Soo Bok Kwon (no page: counted as 1100)
Mar 1, 1965 · KO 7/10 · weight ×1.05
W
Yuji Masuko (no page: counted as 1100)
Retained Japanese featherweight title
Jan 18, 1965 · UD 10/10 · weight ×1.10
W
Hyun Kim (no page: counted as 1100)
Dec 12, 1964 · PTS 10/10 · weight ×1.05
W
Atsushi Gunji (no page: counted as 1100)
Nov 9, 1964 · PTS 10/10 · weight ×1.05
W
Yuji Masuko (no page: counted as 1100)
Won Japanese featherweight title
Sep 28, 1964 · PTS 10/10 · weight ×1.10
W
Dong Chun Lee (no page: counted as 1100)
Jul 9, 1964 · PTS 10/10 · weight ×1.05
W
Kwang Joo Lee (no page: counted as 1100)
Jun 1, 1964 · PTS 10/10 · weight ×1.05
W
Apr 26, 1964 · PTS 10/10 · weight ×1.05 · opponent 1472
W
Porte Villa (no page: counted as 1100)
Apr 13, 1964 · PTS 10/10 · weight ×1.05
L
Eduardo Guerrero (no page: counted as 1100)
Feb 20, 1964 · PTS 10/10 · weight ×1.05
L
Kang Il Suh (no page: counted as 1100)
Jan 26, 1964 · PTS 10/10 · weight ×1.05
−107
→ 1500
L
Johnny Jamito (no page: counted as 1100)
Nov 2, 1963 · RTD 6/10 · weight ×1.05
−117
→ 1607
L
For vacant Japanese featherweight title
Aug 19, 1963 · PTS 10/10 · weight ×1.10 · opponent 1500
−108
→ 1725
W
Toshio Shibazaki (no page: counted as 1100)
Jul 30, 1963 · PTS 8/8 · weight ×1.00
W
Dommy Balajada (no page: counted as 1100)
Jun 24, 1963 · UD 10/10 · weight ×1.05
W
Yuji Masuko (no page: counted as 1100)
May 13, 1963 · KO 2/10 · weight ×1.05
W
Teruo Hino (no page: counted as 1100)
May 2, 1963 · PTS 8/8 · weight ×1.00
W
Kazuhiro Furuya (no page: counted as 1100)
Apr 4, 1963 · MD 6/6 · weight ×0.90
W
Hideo Fukuchi (no page: counted as 1100)
Mar 18, 1963 · UD 6/6 · weight ×0.90
W
Isamu Kato (no page: counted as 1100)
Feb 19, 1963 · UD 6/6 · weight ×0.90
W
Tsutomu Yoshida (no page: counted as 1100)
Jan 28, 1963 · UD 6/6 · weight ×0.90
W
Noriyoshi Toyoshima (no page: counted as 1100)
Dec 31, 1962 · UD 6/6 · weight ×0.90
W
Hisao Omori (no page: counted as 1100)
Dec 15, 1962 · UD 4/4 · weight ×0.80
W
Saburo Yanagi (no page: counted as 1100)
Nov 29, 1962 · SD 4/4 · weight ×0.80
W
Kazuo Hayasako (no page: counted as 1100)
Nov 7, 1962 · UD 4/4 · weight ×0.80
W
Masayoshi Otake (no page: counted as 1100)
Oct 16, 1962 · UD 4/4 · weight ×0.80
W
Kazuyoshi Ohashi (no page: counted as 1100)
Sep 25, 1962 · UD 4/4 · weight ×0.80
W
Kiyokazu Komura (no page: counted as 1100)
Sep 11, 1962 · UD 4/4 · weight ×0.80
W
Saburo Yanagi (no page: counted as 1100)
Aug 20, 1962 · UD 4/4 · weight ×0.80
W
Yukichi Takase (no page: counted as 1100)
Jul 30, 1962 · UD 4/4 · weight ×0.80
W
Michio Ishii (no page: counted as 1100)
Jul 13, 1962 · TKO 2/4 · weight ×0.80
W
Hisatsugu Kyoya (no page: counted as 1100)
Jul 2, 1962 · MD 4/4 · weight ×0.80

Publishers and Boxerbook

Consensus: no publisher lists for the division (a list without them counts as 16).

WBC
not in top 15
WBA
not in top 15
IBF
not in top 15
WBO
not in top 15
Ring
not in top 15
TBRB
not in top 15
Boxerbook
not listed

How the Boxerbook rating works · Hiroshi Kobayashi: record and titles