Get the latest predictions and odds for Japanese Baseball League. Nippon Professional Baseball or NPB is the highest level of baseball in Japan. The league currently consists of two six-team circuits, the Central League and the Pacific League. Each season the winning clubs from the two leagues compete in the Japan Series, the championship series of NPB BetDSI Sportsbook has the best Japan Baseball lines and predictions for you to start winning today betting on International Baseball Leagues at Diamond Sportsbook.