Boxers / Kōji Kobayashi / Boxerbook rating

Kōji Kobayashi: Boxerbook rating

Kōji Kobayashi has a Boxerbook rating of 1562 ± 262 from 31 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Aug 1985 (no bout for 12 months).

Rating1562 ± 262
Placenot listed
Counted bouts31
Unknown opponents26 of 31
Schedule, career1171
Schedule, 36 monthsno bouts
Form, last 51.6 of 3.5
Data confidence10%
Statusinactive since Aug 1985

Rating over time

high 1735 · low 1390Dec 1978Mar 1986

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: 26 of 31 bouts.

L
Yoshiyuki Uchida (no page: counted as 1100)
Aug 27, 1985 · TKO 7/10 · weight ×1.05
−53
→ 1562
L
Kazuo Katsuma (no page: counted as 1100)
Mar 5, 1985 · TKO 12/12 · weight ×1.10
−56
→ 1614
W
Joe Shiranui (no page: counted as 1100)
Dec 1, 1984 · UD 10/10 · weight ×1.05
+6
→ 1670
W
Kap Dong Park (no page: counted as 1100)
Oct 16, 1984 · UD 10/10 · weight ×1.05
+6
→ 1664
W
Allan Makitoki (no page: counted as 1100)
Jun 19, 1984 · MD 10/10 · weight ×1.05
+6
→ 1657
L
Gabriel Bernal
For WBC and The Ring flyweight titles
Apr 9, 1984 · KO 2/12 · weight ×1.65 · opponent 1630
−84
→ 1651
W
Frank Cedeno
Won WBC and The Ring flyweight titles
Jan 18, 1984 · TKO 2/12 · weight ×1.65 · opponent 1571
+55
→ 1735
W
Rord Mitsuru (no page: counted as 1100)
Jul 7, 1983 · TKO 7/10 · weight ×1.05
+8
→ 1680
W
Chan Soo Jung (no page: counted as 1100)
Apr 19, 1983 · TKO 5/10 · weight ×1.05
+9
→ 1672
W
Rodrigo Saonoy (no page: counted as 1100)
Nov 5, 1982 · UD 10/10 · weight ×1.05
+9
→ 1663
D
Jackal Maruyama
Sep 3, 1982 · UD 10/10 · weight ×1.05 · opponent 1358
−33
→ 1654
W
Jong Chul Park (no page: counted as 1100)
Jun 4, 1982 · RTD 5/10 · weight ×1.05
+9
→ 1687
W
Flash Jagdon (no page: counted as 1100)
Mar 6, 1982 · UD 10/10 · weight ×1.05
+9
→ 1678
W
Phaktai Lipovitan
Nov 21, 1981 · KO 4/10 · weight ×1.05 · opponent 1420
+30
→ 1669
W
Jiro Takada (no page: counted as 1100)
Aug 4, 1981 · TKO 7/10 · weight ×1.05
+12
→ 1639
W
Facomron Vibonchai (no page: counted as 1100)
May 10, 1981 · KO 2/10 · weight ×1.05
+13
→ 1627
W
Nobuo Horigome (no page: counted as 1100)
Apr 7, 1981 · KO 4/10 · weight ×1.05
+14
→ 1614
W
Fujimi Wada (no page: counted as 1100)
Feb 3, 1981 · KO 2/8 · weight ×1.00
+15
→ 1600
W
Hirohisa Iino (no page: counted as 1100)
Dec 16, 1980 · KO 6/10 · weight ×1.05
+17
→ 1585
W
Nobuo Horigome (no page: counted as 1100)
Nov 8, 1980 · PTS 8/8 · weight ×1.00
+18
→ 1568
Show all 31 counted bouts
W
Kazuyoshi Funaki (no page: counted as 1100)
Aug 29, 1980 · KO 1/8 · weight ×1.00
+21
→ 1549
W
Yoshiaki Kanda (no page: counted as 1100)
Apr 14, 1980 · PTS 6/6 · weight ×0.90
+21
→ 1528
L
Jiro Watanabe
Feb 21, 1980 · KO 1/6 · weight ×0.90 · opponent 1720
−50
→ 1507
W
Hiroyuki Kobayashi (no page: counted as 1100)
Dec 23, 1979 · KO 2/6 · weight ×0.90
+25
→ 1558
W
Mutsuo Watanabe (no page: counted as 1100)
Sep 21, 1979 · PTS 4/4 · weight ×0.80
+26
→ 1533
W
Koichi Togashi (no page: counted as 1100)
Jul 20, 1979 · KO 3/4 · weight ×0.80
+31
→ 1507
W
Shinji Takagi (no page: counted as 1100)
May 7, 1979 · KO 2/4 · weight ×0.80
+38
→ 1477
W
Junichi Ota (no page: counted as 1100)
Mar 23, 1979 · PTS 4/4 · weight ×0.80
+49
→ 1439
D
Kiyomi Sato (no page: counted as 1100)
Feb 23, 1979 · PTS 4/4 · weight ×0.80
−70
→ 1390
D
Mutsuo Watanabe (no page: counted as 1100)
Jan 4, 1979 · PTS 4/4 · weight ×0.80
−96
→ 1460
W
Ryutaro Abe (no page: counted as 1100)
Dec 12, 1978 · KO 3/4 · weight ×0.80
+55
→ 1555

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 · Kōji Kobayashi: record and titles