Intentional base on balls

In baseball, an intentional base on balls, usually referred to as an intentional walk and denoted in baseball scorekeeping by IBB, is a walk issued to a batter by a pitcher with the intent of removing the batter's opportunity to swing at the pitched ball. A pitch that is intentionally thrown far outside the strike zone for this purpose is referred to as an intentional ball.

Beginning with the 2017 season, Major League Baseball has removed the requirement to throw four intentional balls. In MLB and in amateur baseball, such as high school and college games, and in most levels of Little League Baseball, the manager of the team on the field now simply asks the plate umpire to let the batter go to first base.