Nippon Professional Baseball is a professional baseball league, and the highest level of baseball in Japan. The NPB is organized into two leagues, the Central League and the Pacific League. After the regular season, the top three teams of each league play off in the Climax Series, which determines which team from each league will play off in the Japan Series to determine the national championship team. The 2016 Nippon Professional Baseball season was the 67th season since the NPB was reorganized in 1950. The Japan Series championship competition was played between the Hokkaido Nippon-Ham Fighters and the Hiroshima Toyo Carp, with the Nippon-Ham fighters winning the overall championship.