Lightweight · Japan
Hiroyuki Sakamoto 39-7-1 29 KO · 1991–2007
Photo: 角海老宝石ボクシングジム, CC BY-SA 4.0 via Wikimedia Commons
Hiroyuki Sakamoto was a lightweight boxer from Japan, born Dec 30, 1970. Record 39-7-1 with 29 knockouts over 1991–2007. Hiroyuki Sakamoto last fought Kanonsuk Sit Jae Prai on Jan 6, 2007 and the bout was a draw.
Also: Хироюки Сакамото · هيرويوكي ساكاموتو · ฮิโรยูกิ ซากาโมโตะ +2 more 坂本博之 · Сакамото, Хироюки
Born Dec 30, 1970
Country 🇯🇵 Japan
Debut Dec 14, 1991
Career 1991–2007
Rounds boxed 262
KO share 74%
Born in Tagawa, Japan
Titles OPBF title, 2nd defence 1997
Boxerbook rating 1527 ± 209 · inactive since Jan 2007Why here › Confirmed bouts 8 of 47 · 1 official
Career record Record
39-7-1, 29 KOs · 1991–2007
Last result D
Kanonsuk Sit Jae Prai
TD 7/10 · Korakuen Hall, 🇯🇵
The record 47 bouts, 1991–2007, newest first. Records under each bout are both boxers going in.
Bouts by source: Wikipedia (ja) · 47, English Wikipedia · 5, Japan Boxing Commission — 試合報告書 · 1
D
Kanonsuk Sit Jae Prai
TD 7/10 · Korakuen Hall, 🇯🇵
Sakamoto 39-7-0 · Prai —
W
Samron Worliratin
KO 1
Sakamoto 38-7-0 · Worliratin —
W
Mankontone Ponsomkwam
KO 3
Sakamoto 37-7-0 · Ponsomkwam —
L
Kishumune Kashiwa
TKO 5
Sakamoto 37-6-0 · Kashiwa —
L
TKO 12
Sakamoto 37-5-0 · Satake 16-2-4
W
Nannam Khatprasanjai
TKO 1
Sakamoto 36-5-0 · Khatprasanjai —
W
Muanmai Sisso
KO 1
Sakamoto 35-5-0 · Sisso —
L
For WBA lightweight title KO 10/12 · Arena, Yokohama, 🇯🇵
Sakamoto 35-4-0 · Hatakeyama 23-1-2
L
For WBA lightweight title TKO 5/12 · Kokugikan, Tokyo, 🇯🇵
Sakamoto 35-3-0 · Serrano 21-5-1
W
Kwon Hyok-jin
UD 10/10
Sakamoto 34-3-0 · Hyok-jin —
W
Prawasna Sakmankraenta
KO 1
Sakamoto 33-3-0 · Sakmankraenta —
W
Ku Won-so
KO 7
Sakamoto 32-3-0 · Won-so —
W
Teófilo Tunakao
KO 2
Sakamoto 31-3-0 · Tunakao —
W
Bart Bud
TKO 3
Sakamoto 30-3-0 · Bud —
L
César Bazán
WBC world lightweight title UD 12/12
Sakamoto 30-2-0 · Bazán —
W
Roberto Luis
KO 1
Sakamoto 29-2-0 · Luis —
W
Jun Mondoned
KO 1
Sakamoto 28-2-0 · Mondoned —
W
No Jong-jin
UD 10/10
Sakamoto 27-2-0 · Jong-jin —
L
For WBC lightweight title SD 12/12 · Arena, Yokohama, 🇯🇵
Sakamoto 27-1-0 · Johnston 21-0-0
W
Elwin González
TKO 8
Sakamoto 26-1-0 · González —
Show all 47 bouts W
Jong-man Chu
KO 3
Sakamoto 25-1-0 · Chu —
W
Ricky Dias
KO 2
Sakamoto 24-1-0 · Dias —
W
Seon-mun Kim
KO 1
Sakamoto 23-1-0 · Kim —
W
Dindo Kanoi
UD 12/12
Sakamoto 22-1-0 · Kanoi —
W
Roger Boleros
Vacant OPBF lightweight title TKO 11
Sakamoto 21-1-0 · Boleros —
W
MD 10/10 · The Mirage, Paradise, 🇺🇸
Sakamoto 20-1-0 · Mayweather 30-8-4
W
No Jong-jin
UD 10/10
Sakamoto 19-1-0 · Jong-jin —
L
UD 10/10 · Korakuen Hall, Tokyo, 🇯🇵
Sakamoto 19-0-0 · Coggi 68-4-2
W
Felix Tubul
UD 10/10
Sakamoto 18-0-0 · Tubul —
W
Jong-gil Kim
UD 10/10
Sakamoto 17-0-0 · Kim —
W
Richard Akailer
KO 4
Sakamoto 16-0-0 · Akailer —
W
Hiroshi Kuwata
TKO 10
Sakamoto 15-0-0 · Kuwata —
W
Ernie Aresna
UD 10/10
Sakamoto 14-0-0 · Aresna —
W
Yuki Ando
Japanese title, 1st defence TKO 3
Sakamoto 13-0-0 · Ando —
W
TKO 9
Sakamoto 12-0-0 · Yoshimura 15-4-0
W
Ruel Alarcon
KO 5
Sakamoto 11-0-0 · Alarcon —
W
Hilberto Aragón
KO 3
Sakamoto 10-0-0 · Aragón —
W
Shin Duil
KO 1
Sakamoto 9-0-0 · Duil —
W
Bong-chun Lee
KO 3
Sakamoto 8-0-0 · Lee —
W
Tsutomu Yasuda
UD 6/6
Sakamoto 7-0-0 · Yasuda —
W
Hiroshi Nakayama
UD 6/6
Sakamoto 6-0-0 · Nakayama —
W
Masaaki Morooka
KO 1
Sakamoto 5-0-0 · Morooka —
W
Kouzi
TKO 2
Sakamoto 4-0-0 · Kouzi —
W
Seinosuke Adachi
KO 1
Sakamoto 3-0-0 · Adachi —
W
Hideki Mori
KO 3
Sakamoto 2-0-0 · Mori —
W
Takaji Kaneshiro
KO 3
Sakamoto 1-0-0 · Kaneshiro —
W
Seiji Taga
KO 1
Sakamoto 0-0-0 · Taga —
Ratings now Not in any current ranking.
World titles No world title reigns recorded.
Facts
What is Hiroyuki Sakamoto's record? Hiroyuki Sakamoto's professional record is 39-7-1 with 29 knockouts.
Who did Hiroyuki Sakamoto fight last? Hiroyuki Sakamoto last fought Kanonsuk Sit Jae Prai on Jan 6, 2007 and the bout was a draw. Sources Boxerbook ID 1290 · permanent link boxerbook.com/id/1290 . Wikidata (CC0), English Wikipedia (CC BY-SA), photo from Wikimedia Commons. Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.
