| 
|   | Kengo NAGASHIMA 
Male
 Lightweight, Japan, Tokyo
 Born: September 27, 1975, Koga City, Ibaragi
 Height 5ft 7 1/2in, mt 1,70
 "southpaw"
 
 amateur record: 80-10, 28 stoppages
 
 
 |  | 
| No amateur resultsProfessional record| Date | Opponent | Place | Result |  | 1995 |  | + June 3 | Hisashi Kaneoka | Tokyo, Japan | W  6 |  | - Aug. 5 | Atsushi Hagiwara | Tokyo, Japan | L  6 |  | 1996 |  | + Jan. 6 | Koji Nakagawa | Tokyo, Japan | KO  1 |  | + Mar. 3 | Yuji Horiuchi | Yokohama, Japan | TKO  2 |  | + June 9 | Art Quizon | Ibaragi, Japan | KO  3 |  | + Sept. 7 | Rolando Pumar | Tokyo, Japan | KO  2 |  | = Dec. 5 | Francis Velasquez | Tokyo, Japan | Drew 10 |  | 1997 |  | + Apr. 6 | Takao Morinishi | Ibaragi, Japan | TKO 10 |  | + July 29 | Masayuki Aoki | Tokyo, Japan | TKO  3 |  | + Sept. 1 | Masamichi Satoh | Tokyo, Japan | W  6 |  | + Oct. 24 | Yoichi Iwamoto | Tokyo, Japan | TKO  8 |  | 1998 |  | + Feb. 7 | Jonathan Mercado | Tokyo, Japan | KO  3 |  | + June 8 | Yamato Mitani | Tokyo, Japan | W 12 |  | (Won OPBF Super-Featherweight Title) |  | + Oct. 3 | Nobutoshi Hiranaka | Tokyo, Japan | W 12 |  | (Retained OPBF Super-Featherweight Title) |  | 1999 |  | + Feb. 6 | Yuji Watanabe | Tokyo, Japan | TKO 10 |  | (Retained OPBF Super-Featherweight Title) |  | + June 5 | Dooyul Lee | Tokyo, Japan | W 12 |  | (Retained OPBF Super-Featherweight Title) |  | + Oct. 2 | Yang-Soo Sung | Tokyo, Japan | W 10 |  | 2000 |  | + Feb. 5 | Frangky Mamuaya | Tokyo, Japan | KO  5 |  | + June 3 | Jeffrey Onate | Tokyo, Japan | W 10 |  | + Oct. 7 | Jongbeum Lee | Tokyo, Japan | KO  4 |  | 2001 |  | + May 5 | Tetsuya Shinozaki | Tokyo, Japan | W 10 |  | + Sept. 22 | Kangil Cho | Tokyo, Japan | TKO  6 |  | 2002 |  | + Jan. 19 | Kinji Amano | Tokyo, Japan | W  10 |  | (Won Japanese Super-Featherweight Title) |  | - Aug. 24 | Sirimongkol Singwangcha | Tokyo, Japan | KO by 2 |  | (For vacant WBC Super-Featherweight Title) |  | 2003 |  | + Feb. 1 | Ki Oh Kil | Tokyo, Japan | TKO 6 |  | + May 17 | Chalarmdam Sithradtrakar | Tokyo, Japan | KO 2 |  | + July 6 | Kongtoranee Porsurasak | Koga, Japan | W 10 |  | + Oct. 4 | Rick Yoshimura | Tokyo, Japan | W 10 |  | 2004 |  | = Feb. 7 | Dennis Laurente | Tokyo, Japan | Drew 10 |  | + July 17 | Seung Won Baek | Tokyo, Japan | TKO 6 |  | - Nov. 20 | Takehiro Shimada | Tokyo, Japan | L 10 |  | (For Japanese Lightweight Title) |  | 2005 |  | + May 21 | Sonkom Kiatshkungthai | Tokyo, Japan | W 10 |  | 2006 |  | + Apr. 10 | Shunsuke Ito | Tokyo, Japan | W 10 |  | (Won Japanese Lightweight Title) |  | + Sept. 9 | Kazuki Kubota | Tokyo, Japan | W 10 |  | (Retained Japanese Lightweight Title) |  | + Dec. 3 | Kei Igarashi | Bando, Japan | W 10 |  | 2007 |  | + Apr. 21 | Ichitaro Ishii | Tokyo, Japan | W 10 |  | (Retained Japanese Lightweight Title) |  | + Nov. 20 | Ricky Tsukamoto | Tokyo, Japan | W 10 |  | (Retained Japanese Lightweight Title) |  | 2008 |  | + Mar. 15 | Jimrex Jaca | Tokyo, Japan | W 10 |  | + July 19 | Hiroto Takeshita | Tokyo, Japan | TKO 1 |  | + Nov. 24 | Leopard Jockygym | Koga, Japan | TKO 2 |  | 2009 |  | + Mar. 29 | Randy Suico | Tokyo, Japan | W 12 |  | (Won vacant OPBF Lightweight Title) |  | + June 13 | Hee Jae CHO | Koga, Japan | W 12 |  | (Retained OPBF Lightweight Title) |  | + Oct. 4 | Jongsarit Muangsurin | Shizuoka, Japan | KO 1 |  | 2010 |  | - Jan. 16 | Ryuji  Migaki | Tokyo, Japan | TKO by 10 (2:07) |  | (Lost OPBF Lightweight Title) |  | + May 30 | Pongsatorn  Srisuree | Koga, Japan | W 8 | 
   SummaryTotal bouts: 45, Won: 39 (18 inside the limit), Lost: 4 (2 inside the limit), Draw: 2, NC: 0 |