What is the ruling on a pitcher wearing tape on his pitching hand?

The ruling on a pitcher wearing tape on his pitching hand is that it must be removed. This is because the rules governing players' equipment in baseball are designed to ensure a level playing field and maintain the integrity of the game. Specifically, any form of tape or similar accessories that could potentially give a player an unfair advantage or alter the way they grip or throw the ball is not permitted.

While there may be circumstances where the tape is seen as not affecting performance, the primary concern is that it can still be perceived as an aid to performance or a potential distraction. Equipment guidelines are strictly enforced to prevent any innovation that could inadvertently bias the competition. Therefore, the best practice for compliance with the rules is to not allow any tape on a pitcher's hand during gameplay. This ruling helps to maintain the traditional standards of the sport and ensures that all players are competing under the same conditions.

Though some choices may suggest the allowance of tape for various reasons, the primary rule against it takes precedence, highlighting the importance of uniformity in equipment standards.