Designated Hitter.
The National League. The American League has a designated hitter.
There are two leagues in American major league baseball, the American League and the National League. The American League has the designated hitter rule which allows for someone other than the pitcher to bat in the pitcher's place. The pitcher does not bat in the American League. The National League does not have the designated hitter rule. The pitcher does bat in the National League.
If the game is being played with the Designated Hitter rule, he does not bat at all. If the game is not being played with the Designated Hitter rule and the new pitcher simply replaces the prior pitcher, the new one bats in same place in the batting order as the former pitcher. If the pitcher comes in on a double switch, the new one may bat in place of the former pitcher or of the other player being removed at the manager's discretion.
designated hitter. In the major leagues DH's are only used in the American League. In the NL league the pitcher has to bat. Basically it is a designated hitter for the pitchers. But when AL and NL teams play each other the AL team does need to bat their pitcher.
No, the pitcher would bat in the shortstop's spot and the shortstop would bat in the pitcher's/designated hitter's spot. According to MLB rule (6.10b), once a player bats for any player in the batting order and then enters the game as the pitcher, the designated hitter is no longer in effect.
No, the designated hitter hits for the whole game unless he is replaced by another player. You may be getting the rule mixed up with the National League. If a pitcher has completed an inning and the manager feels he has done his duty on the mound, he will call in a pinch-hitter for the pitcher (if he comes to bat before they go back out on the field). That hitter will only hit for that one time, then the next pitcher will take his place in the lineup. If they happen to bat around that inning, the pinch hitter will bat again.
In the National Baseball League - the pitcher is not only allowed to bat - he is required to. In the American Baseball League, the pticher does not bat. He was replaced in that capacity many years ago by the "designated hitter".
The designated hitter cannot be used for any other player but the pitcher. Use of the DH is optional. The manager must designate a DH prior to the start of the game; failure to do so forfeits the right to use the DH, and the pitcher must then take his turn at bat.
Yes, usually this is done when a new pitcher comes in during the same at-bat and throws with the opposite arm.
the substituted hitter gets the at bat
Because pitchers do not bat in the American League ... they are replaced in the batting order by the designated hitter.