The strike zone in baseball refers to the volume of space which a ball must pass through to be called a ‘strike’ (if the batter doesn’t swing). If the baseball does not pass through this zone it will be called a ‘ball.’ Official strike zones are calculated as the space between the width of home-plate, 17” | 43.18 cm, up to the midpoint between a batter’s shoulders and uniform pants when in their stance, and extending down to just below their kneecaps. The home-plate umpire determines balls and strikes after every pitch thrown.
The strike zone in baseball refers to the volume of space which a ball must pass through to be called a ‘strike’ (if the batter doesn’t swing). If the baseball does not pass through this zone it will be called a ‘ball.’ Official strike zones are calculated as the space between the width of home-plate, 17” | 43.18 cm, up to the midpoint between a batter’s shoulders and uniform pants when in their stance, and extending down to just below their kneecaps. The home-plate umpire determines balls and strikes after every pitch thrown.