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|   | Shinya IWABUCHI 
Male
 Super-Lightweight, Japan, Soka, Saitama
 Born: July 16, 1985, Yashio, Saitama
 Height: 5ft 7 1/in, mt 1,70
 southpaw
 
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| No amateur resultsProfessional record| Date | Opponent | Place | Result |  | 2004 |  | - Feb. 2 | Sho Ishiyama | Tokyo, Japan | TL 4 |  | - Sept. 13 | Hisashi Maeshiro | Tokyo, Japan | L 4 |  | 2005 |  | + Apr. 5 | Sho Ishiyama | Tokyo, Japan | TKO 4 |  | + Sept. 25 | Yoshiaki Saito | Yokohama, Japan | TKO 3 |  | 2006 |  | + Mar. 1 | Daisuke Nakajima | Tokyo, Japan | TKO 1 |  | + May 29 | Naoki Takahashi | Tokyo, Japan | W 4 |  | + Sept. 5 | RC 40 Tsutomu | Tokyo, Japan | TKO 4 |  | + Dec. 6 | Masataka Shoda | Tokyo, Japan | W 6 |  | 2007 |  | + Apr. 5 | Shunsuke Ikeda | Tokyo, Japan | KO 5 |  | + July 4 | Somnup Sor Worapin | Tokyo, Japan | KO 3 |  | + Dec. 3 | Koji Toyoshima | Tokyo, Japan | TKO 6 |  | 2008 |  | + Mar. 4 | Chokchalerm Wor Surapol | Tokyo, Japan | TKO 2 |  | - July 9 | Daiki Koide | Tokyo, Japan | L 8 |  | + Dec. 1 | Shingo Tanaka | Tokyo, Japan | TKO 1 |  | 2009 |  | + Apr. 6 | Sardtora Saendeegym | Tokyo, Japan | KO 3 |  | + Oct. 5 | Hiroki  Morishita | Tokyo, Japan | TKO 4 |  | 2010 |  | + July 1 | Yosmar  Kefi | Tokyo, Japan | TKO 1 |  | 2011 |  | + Feb. 2 | Masayoshi  Kotake | Tokyo, Japan | W 8 |  | + July 6 | Kota Koike | Tokyo, Japan | TKO 4 |  | + Oct. 15 | Koichi Aso | Tokyo, Japan | TKO 1 |  | 2012 |  | + Feb. 13 | Yuji  Wauke | Tokyo, Japan | KO 7 (1:34) |  | (Won Japanese Super-Lightweight Title) | 
   SummaryTotal bouts: 21, Won: 18 (15 inside the limit), Lost: 3 (0 inside the limit), Draw: 0, NC: 0 |