Lightweight · Japan
Guts Ishimatsu 31-14-6 17 KO · 1966–1978
Guts Ishimatsu was a lightweight boxer from Japan, born Jun 5, 1949. Record 31-14-6 with 17 knockouts over 1966–1978. World titles: WBC lightweight (1974–1976). Guts Ishimatsu last fought Yobi Arai on Jun 20, 1978 and lost by DEC over 10 rounds.
Also: Гуц Исимацу · قاتس إشيماتسو · گاتس ایشیموتو +13 more กัตซ์ อิชิมะสึ · ガッツ石松 · 石松葛兹 · 膽量石松 · 葛茲石松 · 葛茲石鬆 · 갓츠 이시마츠 · Yūji Ishimatsu · Yūji Suzuki · 石鬆葛茲 · 鈴木有二 · 鈴木石松 · 鈴木石鬆
Born Jun 5, 1949
Died Jun 2, 2026
Country 🇯🇵 Japan
Stance Orthodox
Height 171 cm
Reach 172 cm
Nickname Guts · Ishimatsu Suzuki
Debut Dec 11, 1966
Career 1966–1978
Rounds boxed 365
KO share 55%
Born in Awano, Tochigi Prefecture, Japan, (now in Kanuma)
Titles WBC lightweight · 1974–1976
Boxerbook rating 1594 ± 274 · inactive since Jun 1978Why here › Confirmed bouts 9 of 51
Career record Record
31-14-6, 17 KOs · 1966–1978
Last result
The record 51 bouts, 1966–1978, newest first. Records under each bout are both boxers going in.
Bouts by source: Wikipedia (ja) · 51, English Wikipedia · 9
L
Yobi Arai
DEC 10/10
Ishimatsu 31-13-6 · Arai —
L
For WBC super-lightweight title KO 6/15 · Kokugikan, Tokyo, 🇯🇵
Ishimatsu 31-12-6 · Muangsurin 7-1-0
L
For WBC lightweight title UD 15/15 · Juan Ramón Loubriel Stadium, Bayamon, 🇵🇷
Ishimatsu 31-11-6 · Jesús 46-3-0
W
Álvaro Rojas
WBC world lightweight title, 5th defence KO 14
Ishimatsu 30-11-6 · Rojas —
W
Arturo Pineda
WBC world lightweight title, 4th defence DEC 15/15
Ishimatsu 29-11-6 · Pineda —
W
For WBC lightweight title UD 15/15 · Metropolitan Gym
Ishimatsu 28-11-6 · Buchanan 56-2-0
W
For WBC lightweight title KO 12/15 · Prefectural Gymnasium, Osaka, 🇯🇵
Ishimatsu 27-11-6 · González 80-7-1
D
Arturo Pineda
WBC world lightweight title, 1st defence DEC 15/15
Ishimatsu 27-11-5 · Pineda —
W
Won WBC lightweight title KO 8/15 · Nihon University Auditorium, Tokyo, 🇯🇵
Ishimatsu 26-11-5 · González 79-6-1
W
Jini Cruz
KO 4
Ishimatsu 25-11-5 · Cruz —
L
For WBA and The Ring lightweight titles TKO 10/15 · Gimnasio Nuevo Panama, Panama City, 🇵🇦
Ishimatsu 25-10-5 · Durán 37-1-0
W
Hiroshi Tono-oka
KO 3
Ishimatsu 24-10-5 · Tono-oka —
W
Fred Paster
OBF lightweight title, 2nd defence DEC 12/12
Ishimatsu 23-10-5 · Paster —
W
Kenji Iwata
KO 1
Ishimatsu 22-10-5 · Iwata —
W
Rudy González
OBF lightweight title, 1st defence DEC 12/12
Ishimatsu 21-10-5 · González —
W
Hiroyuki Murakami
DEC 10/10
Ishimatsu 20-10-5 · Murakami —
W
Won OBF lightweight title DEC 12/12
Ishimatsu 19-10-5 · Kadota —
L
Chang-gil Lee
DEC 10/10
Ishimatsu 19-9-5 · Lee —
L
KO 8
Ishimatsu 19-8-5 · Kadota —
W
Marcelio Kuchiron
TKO 4
Ishimatsu 18-8-5 · Kuchiron —
Show all 51 bouts W
Hitoshi Komase
DEC 10/10
Ishimatsu 17-8-5 · Komase —
D
Japanese lightweight title DEC 10/10
Ishimatsu 17-8-4 · Takayama —
L
MD 10/10 · Honolulu International Center, Honolulu, 🇺🇸
Ishimatsu 17-7-4 · Barrientos 33-6-2
L
UD 10/10 · Palais Theatre, Saint Kilda, 🇦🇺
Ishimatsu 17-6-4 · Rose 38-5-0
W
Jong-bok Lee
DEC 10/10
Ishimatsu 16-6-4 · Lee —
L
For WBA, WBC, and The Ring lightweight titles TKO 13/15 · Gimnasio Nuevo Panama, Panama City, 🇵🇦
Ishimatsu 16-5-4 · Laguna 62-6-1
W
Jaguar Kakizawa
DEC 10/10
Ishimatsu 15-5-4 · Kakizawa —
W
Isao Ichihara
KO 6
Ishimatsu 14-5-4 · Ichihara —
W
Kenshichiro Date
DEC 10/10
Ishimatsu 13-5-4 · Date —
W
Haruo Kikumoto
DEC 8/8
Ishimatsu 12-5-4 · Kikumoto —
L
Isao Shiiya
DEC 8/8
Ishimatsu 12-4-4 · Shiiya —
D
Hitoshi Komase
DEC 8/8
Ishimatsu 12-4-3 · Komase —
D
Haruo Kikumoto
DEC 8/8
Ishimatsu 12-4-2 · Kikumoto —
W
Tsuyoshi Yamamoto
KO 2
Ishimatsu 11-4-2 · Yamamoto —
W
Makoto Yumi
KO 1
Ishimatsu 10-4-2 · Yumi —
W
Tsunehisa Ninomiya
KO 1
Ishimatsu 9-4-2 · Ninomiya —
D
Hitoshi Komase
DEC 4/4
Ishimatsu 9-4-1 · Komase —
L
Koichi Otomaru
DEC 4/4
Ishimatsu 9-3-1 · Otomaru —
W
Noboru Nakamoto
KO 2
Ishimatsu 8-3-1 · Nakamoto —
W
Toshiro Shinguchi
DEC 4/4
Ishimatsu 7-3-1 · Shinguchi —
W
Haruo Kikumoto
KO 3
Ishimatsu 6-3-1 · Kikumoto —
W
Tetsuichi Okamoto
DEC 4/4
Ishimatsu 5-3-1 · Okamoto —
W
Tadao Nakamura
KO 1
Ishimatsu 4-3-1 · Nakamura —
L
Kazuo Yashiro
DEC 4/4
Ishimatsu 4-2-1 · Yashiro —
L
Keiji Murabayashi
KO 1
Ishimatsu 4-1-1 · Murabayashi —
D
Hajime Kagawa
DEC 4/4
Ishimatsu 4-1-0 · Kagawa —
L
Hajime Kagawa
DEC 4/4
Ishimatsu 4-0-0 · Kagawa —
W
Tetsuo Kimura
KO 3
Ishimatsu 3-0-0 · Kimura —
W
Akio Fujita
DEC 4/4
Ishimatsu 2-0-0 · Fujita —
W
Yoichi Ichikawa
KO 1
Ishimatsu 1-0-0 · Ichikawa —
W
Masao Fujiwara
KO 1
Ishimatsu 0-0-0 · Fujiwara —
Ratings now Not in any current ranking.
World titles
Facts
What is Guts Ishimatsu's record? Guts Ishimatsu's professional record is 31-14-6 with 17 knockouts.
Who did Guts Ishimatsu fight last? Guts Ishimatsu last fought Yobi Arai on Jun 20, 1978 and lost by DEC over 10 rounds.
Which world titles has Guts Ishimatsu held? Guts Ishimatsu has held 1 world title reign: WBC lightweight (1974–1976). Sources Boxerbook ID 18007 · permanent link boxerbook.com/id/18007 . Wikidata (CC0), English Wikipedia (CC BY-SA), photo from the Instagram profile. Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.