do intentional walks count for obp
On Base Percentage (OBP) - On Base Percentage is similar to batting average but includes appearances which led to walks and times a hitter was hit by a pitch. It is calculated by adding Base Hits, Bases on Balls and Hit by Pitches, and dividing by the sum of At Bats, Bases on Balls, Hit by Pitches and Sacrifices.ases on Balls (BB) - The number of bases on balls (walks) issued by the pitcher. This does not include Intentional Bases on Balls (where the manager effectively instructs the pitcher to walk a batter for tactical reasons).