Boxers / Hiroyuki Sakamoto / Boxerbook rating

Hiroyuki Sakamoto: Boxerbook rating

Hiroyuki Sakamoto has a Boxerbook rating of 1527 ± 209 from 47 counted bouts, as of Oct 13, 2026. Not in a division list: inactive since Jan 2007 (no bout for 12 months).

Rating1527 ± 209
Placenot listed
Counted bouts47
Unknown opponents40 of 47
Schedule, career1194
Schedule, 36 monthsno bouts
Form, last 52.0 of 3.5
Data confidence15%
Statusinactive since Jan 2007

Rating over time

high 1881 · low 1527Dec 1991Jan 2007

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: 40 of 47 bouts.

D
Kanonsuk Sit Jae Prai (no page: counted as 1100)
Jan 6, 2007 · TD 7/10 · weight ×1.00
−24
→ 1527
W
Samron Worliratin (no page: counted as 1100)
Jun 22, 2006 · KO 1 · weight ×1.00
+11
→ 1552
W
Mankontone Ponsomkwam (no page: counted as 1100)
Jan 14, 2006 · KO 3 · weight ×1.00
+11
→ 1541
L
Kishumune Kashiwa (no page: counted as 1100)
May 12, 2005 · TKO 5 · weight ×1.00
−60
→ 1530
L
Masakazu Satake
OPBF title, 8th defence
Oct 5, 2002 · TKO 12 · weight ×1.05 · opponent 1659
−38
→ 1590
W
Nannam Khatprasanjai (no page: counted as 1100)
Jun 1, 2002 · TKO 1 · weight ×1.00
+8
→ 1628
W
Muanmai Sisso (no page: counted as 1100)
Jan 5, 2002 · KO 1 · weight ×1.00
+8
→ 1621
L
Takanori Hatakeyama
For WBA lightweight title
Oct 11, 2000 · KO 10/12 · weight ×1.65 · opponent 1843
−35
→ 1613
L
Gilberto Serrano
For WBA lightweight title
Mar 13, 2000 · TKO 5/12 · weight ×1.65 · opponent 1566
−109
→ 1648
W
Kwon Hyok-jin (no page: counted as 1100)
Jan 8, 2000 · UD 10/10 · weight ×1.05
+6
→ 1757
W
Prawasna Sakmankraenta (no page: counted as 1100)
Sep 27, 1999 · KO 1 · weight ×1.00
+6
→ 1751
W
Ku Won-so (no page: counted as 1100)
Jun 27, 1999 · KO 7 · weight ×1.00
+6
→ 1745
W
Teófilo Tunakao (no page: counted as 1100)
May 8, 1999 · KO 2 · weight ×1.00
+6
→ 1739
W
Bart Bud (no page: counted as 1100)
Jan 9, 1999 · TKO 3 · weight ×1.00
+6
→ 1733
L
César Bazán (no page: counted as 1100)
WBC world lightweight title
Aug 23, 1998 · UD 12/12 · weight ×1.65
−120
→ 1727
W
Roberto Luis (no page: counted as 1100)
May 9, 1998 · KO 1 · weight ×1.00
+4
→ 1847
W
Jun Mondoned (no page: counted as 1100)
Mar 8, 1998 · KO 1 · weight ×1.00
+4
→ 1843
W
No Jong-jin (no page: counted as 1100)
Nov 22, 1997 · UD 10/10 · weight ×1.05
+5
→ 1838
L
Stevie Johnston
For WBC lightweight title
Jul 26, 1997 · SD 12/12 · weight ×1.65 · opponent 2087
−43
→ 1834
W
Elwin González (no page: counted as 1100)
Apr 5, 1997 · TKO 8 · weight ×1.00
+4
→ 1877
Show all 47 counted bouts
W
Jong-man Chu (no page: counted as 1100)
OPBF title, 2nd defence
Jan 4, 1997 · KO 3 · weight ×1.05
+5
→ 1872
W
Ricky Dias (no page: counted as 1100)
Nov 2, 1996 · KO 2 · weight ×1.00
+5
→ 1868
W
Seon-mun Kim (no page: counted as 1100)
Sep 7, 1996 · KO 1 · weight ×1.00
+5
→ 1863
W
Dindo Kanoi (no page: counted as 1100)
OPBF title, 1st defence
Jun 1, 1996 · UD 12/12 · weight ×1.16
+6
→ 1858
W
Roger Boleros (no page: counted as 1100)
Vacant OPBF lightweight title
Mar 3, 1996 · TKO 11 · weight ×1.05
+5
→ 1853
W
Jeff Mayweather
Nov 25, 1995 · MD 10/10 · weight ×1.05 · opponent 1465
+17
→ 1847
W
No Jong-jin (no page: counted as 1100)
Sep 2, 1995 · UD 10/10 · weight ×1.05
+6
→ 1830
L
Martín Coggi
May 6, 1995 · UD 10/10 · weight ×1.05 · opponent 1976
−56
→ 1824
W
Felix Tubul (no page: counted as 1100)
Mar 16, 1995 · UD 10/10 · weight ×1.05
+6
→ 1881
W
Jong-gil Kim (no page: counted as 1100)
Jan 7, 1995 · UD 10/10 · weight ×1.05
+7
→ 1874
W
Richard Akailer (no page: counted as 1100)
Oct 1, 1994 · KO 4 · weight ×1.00
+7
→ 1868
W
Hiroshi Kuwata (no page: counted as 1100)
Aug 6, 1994 · TKO 10 · weight ×1.00
+7
→ 1861
W
Ernie Aresna (no page: counted as 1100)
May 7, 1994 · UD 10/10 · weight ×1.05
+8
→ 1854
W
Yuki Ando (no page: counted as 1100)
Japanese title, 1st defence
Feb 5, 1994 · TKO 3 · weight ×1.05
+8
→ 1847
W
Rick Yoshimura
Won Japanese title
Dec 13, 1993 · TKO 9 · weight ×1.05 · opponent 1538
+41
→ 1839
W
Ruel Alarcon (no page: counted as 1100)
Oct 21, 1993 · KO 5 · weight ×1.00
+11
→ 1798
W
Hilberto Aragón (no page: counted as 1100)
Aug 7, 1993 · KO 3 · weight ×1.00
+12
→ 1787
W
Shin Duil (no page: counted as 1100)
Jun 5, 1993 · KO 1 · weight ×1.00
+13
→ 1775
W
Bong-chun Lee (no page: counted as 1100)
Apr 15, 1993 · KO 3 · weight ×1.00
+14
→ 1762
W
Tsutomu Yasuda (no page: counted as 1100)
Feb 20, 1993 · UD 6/6 · weight ×0.90
+14
→ 1747
W
Hiroshi Nakayama (no page: counted as 1100)
Dec 18, 1992 · UD 6/6 · weight ×0.90
+16
→ 1733
W
Masaaki Morooka (no page: counted as 1100)
Nov 5, 1992 · KO 1 · weight ×1.00
+20
→ 1717
W
Kouzi (no page: counted as 1100)
Aug 31, 1992 · TKO 2 · weight ×1.00
+23
→ 1697
W
Seinosuke Adachi (no page: counted as 1100)
Jul 16, 1992 · KO 1 · weight ×1.00
+28
→ 1674
W
Hideki Mori (no page: counted as 1100)
Jun 17, 1992 · KO 3 · weight ×1.00
+35
→ 1646
W
Takaji Kaneshiro (no page: counted as 1100)
May 18, 1992 · KO 3 · weight ×1.00
+45
→ 1611
W
Seiji Taga (no page: counted as 1100)
Dec 14, 1991 · KO 1 · weight ×1.00
+66
→ 1566

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 · Hiroyuki Sakamoto: record and titles