In baseball, a series refers to two or more consecutive games played between the same two teams.
Historically and currently, professional baseball season revolves around a schedule of series, each typically lasting three or four games.
These series are often geographically grouped, allowing teams to visit adjacent cities conveniently.
During the Major League Baseball Postseason, there are four wild card series (two in each League), each of which are a best-of-3 series.
The record for the longest series was set in 1904, when the St. Louis Browns played the Detroit Tigers for 11 consecutive games.