The fighter, who went 15-3 (13) after the JBC began to recognise female boxing, first fought way back in 2001 though first made her name in 2010 when she claimed the OPBF Female Super Flyweight title with a 9th round TKO against Rie Fujimoto. The following year she came up short against Ana Maria Torres in a WBC world title fight but would capture the WBA title in 2012, when she defeated Tenki Tsunami.
As the WBA champion Yamaguchi recorded 2 defenses before coming unstuck against the fantastic Naoko Fujioka in November 2013 in a memorable bout. That was to be her last final bout, though retirement did take some time to decide on.
We would like to wish Naoko all the best in her life away from the ring.
(Image courtesy of boxingnews.jp)