In baseball, an intentional base on balls, usually referred to as an intentional walk and denoted in baseball scorekeeping by IBB, is a base on balls (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.
Barry Bonds[1][2] is the all-time leader in intentional bases on balls with 688 career intentional walks. Bonds is the only player to be intentionally walked more than 400 times. Albert Pujols[3] is second all-time and the active leader with 315 career intentional bases on balls and the only other player to be intentionally walked over 300 times.
