KI
Super bantamweight · Japan
Kōzō Ishii 31-4-0 21 KO · 1995–2003
Kōzō Ishii was a super bantamweight boxer from Japan, born Aug 15, 1977. Record 31-4-0 with 21 knockouts over 1995–2003. Kōzō Ishii last fought Óscar Larios on Sep 7, 2003 and lost by TKO in round 2 of 12.
Also: Кодзо Исии · 石井広三 · Kouzou Ishii +2 more Kozo Ishii · Исии, Кодзо
Born Aug 15, 1977
Died Jul 5, 2012
Country 🇯🇵 Japan
Debut Jul 15, 1995
Career 1995–2003
Rounds boxed 171
KO share 68%
Titles OPBF super bantamweight title 1999
Boxerbook rating 1716 ± 215 · inactive since Sep 2003Why here › Confirmed bouts 4 of 35
Career record Record
31-4-0, 21 KOs · 1995–2003
Last result L
For WBC super bantamweight title TKO 2/12 · Rainbow Hall, Nagoya, 🇯🇵
The record 35 bouts, 1995–2003, newest first. Records under each bout are both boxers going in.
Bouts by source: Wikipedia (ja) · 35, English Wikipedia · 4
L
For WBC super bantamweight title TKO 2/12 · Rainbow Hall, Nagoya, 🇯🇵
Ishii 31-3-0 · Larios 48-3-1
W
UD 10/10 · Park Arena, Komaki, 🇯🇵
Ishii 30-3-0 · Domingo 15-7-3
W
Wirachai Chuwatana
KO 2
Ishii 29-3-0 · Chuwatana —
W
Wichit Chuwatana
UD 10/10
Ishii 28-3-0 · Chuwatana —
W
Samuel Bentura
KO 1
Ishii 27-3-0 · Bentura —
W
Kyong-chol Park
KO 5
Ishii 26-3-0 · Park —
W
Saohin Siritaikhondo
UD 10/10
Ishii 25-3-0 · Siritaikhondo —
W
Frankie Mamuaya
KO 6
Ishii 24-3-0 · Mamuaya —
W
Suksawadi Katchaiyon
KO 2
Ishii 23-3-0 · Katchaiyon —
L
For vacant WBA interim super bantamweight title TKO 11/12 · Rainbow Hall, Nagoya, 🇯🇵
Ishii 23-2-0 · Ortega 29-3-1
W
Hino Catdooboubon
TKO 10
Ishii 22-2-0 · Catdooboubon —
W
Jorge Morúa
KO 1
Ishii 21-2-0 · Morúa —
L
For WBA super-bantamweight title TKO 12/12 · Rainbow Hall, Nagoya, 🇯🇵
Ishii 21-1-0 · Garza 37-1-0
W
Dino Olivetti
Won OPBF super bantamweight title TKO 1
Ishii 20-1-0 · Olivetti —
W
Tony Bernales
UD 10/10
Ishii 19-1-0 · Bernales —
W
Shin Palman
TKO 2
Ishii 18-1-0 · Palman —
W
Jake Kalte
KO 4
Ishii 17-1-0 · Kalte —
W
Yang-gun Chon
TKO 3
Ishii 16-1-0 · Chon —
W
Bimboy Riego
KO 3
Ishii 15-1-0 · Riego —
W
Yeon-hun Lee
UD 10/10
Ishii 14-1-0 · Lee —
Show all 35 bouts W
O Jang-gyu
KO 5
Ishii 13-1-0 · Jang-gyu —
W
Hong Seong-pyeo
TKO 6
Ishii 12-1-0 · Seong-pyeo —
W
An Yong-jin
TKO 1
Ishii 11-1-0 · Yong-jin —
W
Joel Funio
TKO 3
Ishii 10-1-0 · Funio —
W
Fanieto Boy Kuma
KO 1
Ishii 9-1-0 · Kuma —
W
Koichi Horie
UD 8/8
Ishii 8-1-0 · Horie —
W
Fumiteru Ujibashi
TKO 3
Ishii 7-1-0 · Ujibashi —
L
SD 6/6
Ishii 7-0-0 · Yanagida —
W
Yoshihisa Nakayama
UD 6/6
Ishii 6-0-0 · Nakayama —
W
Tomoyuki Mizuno
UD 4/4
Ishii 5-0-0 · Mizuno —
W
Atsushi Tasaku
KO 2
Ishii 4-0-0 · Tasaku —
W
Osamu Oura
DEC 4/4
Ishii 3-0-0 · Oura —
W
Yuichi Ogawa
UD 4/4
Ishii 2-0-0 · Ogawa —
W
Atsushi Koga
TKO 1
Ishii 1-0-0 · Koga —
W
Takao Okada
KO 2
Ishii 0-0-0 · Okada —
Ratings now Not in any current ranking.
World titles No world title reigns recorded.
Facts
What is Kōzō Ishii's record? Kōzō Ishii's professional record is 31-4-0 with 21 knockouts.
Who did Kōzō Ishii fight last? Kōzō Ishii last fought Óscar Larios on Sep 7, 2003 and lost by TKO in round 2 of 12. Sources Boxerbook ID 1581 · permanent link boxerbook.com/id/1581 . Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.