The Japanese Baseball League disbanded in 1949, reorganizing itself in 1950 as Nippon Professional Baseball (NPB). (It is called , which simply is a translation of "professional baseball".) The Central League included the established teams, and the Pacific League was made up of new teams and players. The Pacific League uses the designated hitter style of play. The pro baseball season is eight months long with games beginning in April. Teams play 144 games (as compared to the 162 games of the American major league teams), followed by a playoff system, culminating in a championship held in October, known as the Japan Series.