SI
Super lightweight · Japan
Shin'ya Iwabuchi 26-6-0 22 KO · 2004–2016
Shin'ya Iwabuchi was a super lightweight boxer from Japan, born Jul 16, 1985. Record 26-6-0 with 22 knockouts over 2004–2016. Shin'ya Iwabuchi last fought Al Rivera on Feb 11, 2016 and lost by TKO in round 7 of 12.
Also: Синъя Ивабути · 岩渕真也 · Ивабути, Синъя
Born Jul 16, 1985
Country 🇯🇵 Japan
Debut Feb 2, 2004
Career 2004–2016
Rounds boxed 166
KO share 85%
Born in Saitama Prefecture, Japan
Titles Japanese title, 3rd defence 2013
Boxerbook rating 1631 ± 168 · inactive since Feb 2016Why here › Confirmed bouts 26 of 32 · 26 official
Career record Record
26-6-0, 22 KOs · 2004–2016
Last result L
Al Rivera
Vacant OPBF super lightweight title TKO 7/12 · Korakuen Hall, 🇯🇵
The record 32 bouts, 2004–2016, newest first. Records under each bout are both boxers going in.
Bouts by source: Wikipedia (ja) · 32, Japan Boxing Commission — 試合報告書 · 26, English Wikipedia · 2
L
Al Rivera
Vacant OPBF super lightweight title TKO 7/12 · Korakuen Hall, 🇯🇵
Iwabuchi 26-5-0 · Rivera —
W
Romeo Jacosalem
TKO 3/8 · Korakuen Hall, 🇯🇵
Iwabuchi 25-5-0 · Jacosalem —
W
Tatsuo Yoshida
TKO 6/8 · Korakuen Hall, 🇯🇵
Iwabuchi 24-5-0 · Yoshida —
W
Luis Araguayan
KO 7/8 · Korakuen Hall, 🇯🇵
Iwabuchi 23-5-0 · Araguayan —
L
OPBF super lightweight title TKO 12/12 · Korakuen Hall, Tokyo, 🇯🇵
Iwabuchi 23-4-0 · Obara 11-1-0
W
TKO 7/8 · Korakuen Hall, Tokyo, 🇯🇵
Iwabuchi 22-4-0 · Jaca 39-6-3
W
Koichi Ogawa
TKO 4/8 · Korakuen Hall, 🇯🇵
Iwabuchi 21-4-0 · Ogawa —
L
Min-uk Kim
OPBF super lightweight title UD 12/12 · Korakuen Hall, 🇯🇵
Iwabuchi 21-3-0 · Kim —
W
Japanese title, 3rd defence TKO 8/10 · Korakuen Hall, 🇯🇵
Iwabuchi 20-3-0 · Hosokawa 16-4-4
W
Japanese title, 2nd defence KO 7/10 · Korakuen Hall, 🇯🇵
Iwabuchi 19-3-0 · Nagase 20-4-2
W
Tsuyoshi Ozawa
Japanese title, 1st defence UD 10/10 · Korakuen Hall, 🇯🇵
Iwabuchi 18-3-0 · Ozawa —
W
Won Japanese super lightweight title KO 7/10 · Korakuen Hall, 🇯🇵
Iwabuchi 17-3-0 · Wauke —
W
TKO 1/8 · Korakuen Hall, 🇯🇵
Iwabuchi 16-3-0 · Aso 13-2-1
W
Kota Koike
TKO 4/6 · Korakuen Hall, 🇯🇵
Iwabuchi 15-3-0 · Koike —
W
Masamoto Kotake
UD 8/8 · Korakuen Hall, 🇯🇵
Iwabuchi 14-3-0 · Kotake —
W
Josmar Kefi
TKO 1/8 · Korakuen Hall, 🇯🇵
Iwabuchi 13-3-0 · Kefi —
W
Hiromi Morishita
TKO 4/8 · Korakuen Hall, 🇯🇵
Iwabuchi 12-3-0 · Morishita —
W
Sardtra Sandeejim
KO 3/8 · Korakuen Hall, 🇯🇵
Iwabuchi 11-3-0 · Sandeejim —
W
Shingo Tanaka
TKO 1/8 · Korakuen Hall, 🇯🇵
Iwabuchi 10-3-0 · Tanaka —
L
Daiki Koide
UD 8/8 · Korakuen Hall, 🇯🇵
Iwabuchi 10-2-0 · Koide —
Show all 32 bouts W
Choke Charoen Sor Sulapon
TKO 2/8 · Korakuen Hall, 🇯🇵
Iwabuchi 9-2-0 · Sulapon —
W
Koji Toyoshima
TKO 6/8 · Korakuen Hall, 🇯🇵
Iwabuchi 8-2-0 · Toyoshima —
W
Somnuk Sor Worapin
KO 3/8 · Korakuen Hall, 🇯🇵
Iwabuchi 7-2-0 · Worapin —
W
Shunsuke Ikeda
KO 5/8 · Korakuen Hall, 🇯🇵
Iwabuchi 6-2-0 · Ikeda —
W
Masataka Ikuta
UD 6/6 · Korakuen Hall, 🇯🇵
Iwabuchi 5-2-0 · Ikuta —
W
Tsutomu Endo
TKO 4/6 · Korakuen Hall, 🇯🇵
Iwabuchi 4-2-0 · Endo —
W
Naoki Takahashi
UD 4/4
Iwabuchi 3-2-0 · Takahashi —
W
Daisuke Nakajima
TKO 1
Iwabuchi 2-2-0 · Nakajima —
W
Yoshiaki Saito
TKO 3
Iwabuchi 1-2-0 · Saito —
W
Sho Ishiyama
TKO 4
Iwabuchi 0-2-0 · Ishiyama —
L
Toshishi Maeshiro
UD 4/4
Iwabuchi 0-1-0 · Maeshiro —
L
Sho Ishiyama
TD 4
Iwabuchi 0-0-0 · Ishiyama —
Ratings now Not in any current ranking.
World titles No world title reigns recorded.
Facts
What is Shin'ya Iwabuchi's record? Shin'ya Iwabuchi's professional record is 26-6-0 with 22 knockouts.
Who did Shin'ya Iwabuchi fight last? Shin'ya Iwabuchi last fought Al Rivera on Feb 11, 2016 and lost by TKO in round 7 of 12. Sources Boxerbook ID 1390 · permanent link boxerbook.com/id/1390 . Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.