The International Authority of Baseball & Softball.

Baseball's Umpire Area

The final resource for Baseball's umpires.

Strike Zone

The Strike Zone is that area over home plate the upper limit of which is a horizontal line at the midpoint between the top of the shoulders and the top of the uniform pants, and the lower level is a line at the hollow beneath the kneecap. The Strike Zone shall be determined from the batter’s stance as the batter is prepared to swing at a pitched ball.

A good posture behind the home leads to consistency in the strike zone, for example a correct position will allow you to visualize the pitches accurately throughout the game, which is why it is important that each time the umpire takes his position you should adjust and think about the following:

Position of the feet. (Towards the mound)

Head Height

Leaning of the body

Square your shoulders to the mound

Distance from the catcher

Timing of your calls

Concentration and focus

Follow the ball without moving your head until the ball is caught by the catcher or is hit. For this we must take into consideration that the slot is never blocked by the batter at the time of contact, this will reduce the margin of error.


Collision Rule

The WBSC is concerned about unnecessary and violent collisions primarily with the catcher at home plate, and with infielders at all bases. The intent of this rule is to encourage base runners and defensive players to avoid such collisions whenever possible.

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OBSTRUCTION is the act of a fielder who, while not in possession of the ball and not in the act of fielding the ball, impedes the progress of any runner.

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Infield Fly

An Infield Fly is a fair fly ball (not including a line drive nor an attempted bunt) which can be caught by an infielder with ordinary effort, when first and second, or first, second and third bases are occupied, before two are out. The pitcher, catcher and any outfielder who stations himself in the infield on the play shall be considered infielders for the purpose of this role.

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A Catch is the act of a fielder in getting secure possession in his hand or glove of a ball in flight and firmly holding it; providing he does not use his cap, protector, pocket or any other part of his uniform in getting possession. It is not a catch, however, if simultaneously or immediately following his contact with the ball, he collides with a player, or with a wall, or if he falls down, as a result of such collision or falling, drops the ball.

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