Why do they change pitchers to pitch to a right hand or left hand batter?

Answer 1

right handed pitchers throw breaking balls that break AWAY from right handed hitters and vice versa, thus it is generally considered more difficult for a right handed batter to hit righties. There are exceptions, the 'screwball' is an example. Generally a right hander wants to throw it only to a lefthander. Its not that common of a pitch. Recently the most notable example was Fernando Valenzuela and lesser known Jim Mecir.

Answer 2

Right handed hitters see the ball better when a left handed pitcher is throwing it, as the ball is coming from the opposite side of the plate from the batter's perspective. The same goes for left handed hitters vs. right handed pitchers. This makes switch hitters a valuable commodity in Baseball.

Answer 3

It doesn't really matter. Both hands, whichever side, are writing hands, so they are completely equal depending on which one you use. I don't think it matters if your left handed or right handed in playing baseball.

Answer 4

The Yankees have a pitcher in the minors named Pat Venditte who throws with both hands.

Answer 5

A left handed hitter only hits right handed people

Answer 6

Righties hit into way more double plays.

Answer 7

right handed hitters