BOSTON — More than four hours before first pitch Friday at Fenway Park, there was Kristian Campbell working with Boston’s coaches on adding yet another position to his already-vast repertoire.

As the College World Series takes place in Omaha over the next two weeks, there will be several distinct things that might stand out to those who may be tuning in for the first time this postseason.

A double first base will be required in high school baseball starting in the 2027 season, the National Federation of State High School Associations announced Tuesday. The change aims to reduce ...