Shingo Yamaguchi: OPBF Champion and World-Title Challenger

Japanese boxer Shingo Yamaguchi challenged Yo-Sam Choi for the WBC light-flyweight title on February 23, 2002. Choi retained the championship with a tenth-round stoppage, but the challenge was one chapter in a career that also included an Oriental and Pacific Boxing Federation title.

Building a regional championship career

Yamaguchi won the vacant OPBF light-flyweight championship against Wyndel Janiola in May 2003. The Japanese Boxing Commission’s March 2004 ratings subsequently listed him as the division’s OPBF champion, documenting his place in the regional title picture after the unsuccessful world championship challenge.

In April 2004, he defended that belt against Nobuaki Masuda at Tokyo’s Korakuen Hall. Yamaguchi recovered from an early scare to win a unanimous decision. He later defended against Bert Batawang and Munetsugu Kayo before losing the championship to Takahisa Masuda in August 2005.

A later opportunity at flyweight

Yamaguchi returned to the world-title stage in a different division when he faced WBC flyweight champion Daisuke Naito in Tokyo on December 23, 2008. Naito retained his belt with an eleventh-round technical knockout, scoring a knockdown shortly before the referee ended the contest.

These results distinguish Yamaguchi’s regional achievements from his world-title attempts. His OPBF reign demonstrated success at light flyweight, while the Naito bout placed him in a flyweight championship contest several years later.

The WBC title-fight record documents the title defense and result. Sources: JBC March 2004 ratings; Naito–Yamaguchi report; Career results; [1] [2]

Sources

Career records and reporting: boxrec.com; boxrec.com.

Tags

Boxing, Boxing History