We have a Patreon! Click here to become a patron, or read the blog to learn more!
    vs.      
Norihiko Koshiba leads the series against Kazutoyo Yanagizawa, 2-0.

event round table player one result player two
Grand Prix Kitakyushu 2005688Koshiba, Norihiko (1498)Won 2-0Yanagizawa, Kazutoyo (1448)
Grand Prix Kobe 20115134Koshiba, Norihiko (1610)Won 2-0Yanagizawa, Kazutoyo (1388)