A thorough analysis of the origins of Tokyo Big6 baseball and its impact on NPB. Traces the course from the university baseball tradition born from the Waseda-Keio rivalry to the position and challenges of Big6 baseball since the 2010s.
An analysis of how university baseball has supplied talent to NPB. This article examines the role of traditional powerhouses centered on the Tokyo Big Six League, the rise of regional leagues, and the relationship with the draft system.
An examination of the history of women's professional baseball in Japan. This article analyzes the barriers women faced in the baseball world and their efforts to overcome them, from the pioneering era of the 1950s through the establishment and suspension of the Japan Women's Baseball League.
An analysis of the history of industrial league baseball and its talent supply relationship with NPB. This article examines the tradition of the Intercity Baseball Tournament, the issue of corporate team disbandment, and the evolution of the professional entry route through industrial leagues.