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.
Yes, usually this is done when a new pitcher comes in during the same at-bat and throws with the opposite arm.
No, the number of balls and strikes stays the same when the new pitcher comes in.
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a player bats for any player in the batting order and then enters the game as the pitcher, the designated hitter is no longer in effect.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, a team cannot change pitchers in the middle of an at-bat. The new pitcher must wait until the current at-bat is completed before entering the game.
Yes--there's no limit to how many players can be substituted at once. Also, in the National League (or any league where pitchers have to bat) a team can make a "double switch", which in the case of a pitcher and catcher would result in the new pitcher batting in the previous catcher's spot in the batting order, and the new catcher in the pitcher's spot (probably ninth).
As far as the rules are concerned, there are no differences between the two leagues. The differences are in strategy and how to use players and mostly involve the pitcher. One tactic used in the National League is called the 'double switch'. This usually occurs late in a close ball game when the pitcher is due up to bat in the following inning. When a manager comes out to remove a pitcher sometimes he will also remove a fielder. Usually, this fielder has batted in the previous inning, maybe even made the final out of the inning. Since the manager has replaced two players, he may designate where the players will bat in the batting order. So the manager will place the new fielder in the batting position of the pitcher and the pitcher in the batting order of the replaced player. That allows the new fielder to bat in the next inning and places the pitcher to bat much later in the order.
When a new game comes out.
As long as the pitcher has pitched to at least one batter previously, a change can be made during an at bat. If the batter is the first batter the pitcher has pitched to, (s)he may not be taken out unless having suffered an injury that the umpires deem is serious enough to warrant being taken out of the game.
A save is when a relief pitcher comes in with his team leading and finishes the game without giving up the lead. ------------------------------------------------------------------------------- Not all such appearances are saves. To be credited with a save, the pitcher's team must win, he must be the pitcher at the end of the game, and he must not be credited with the win. (Essentially the above answer.) But then he must qualify in one of three additional ways: (1) he pitched effectively for at least three innings; (2) he came into the game with his team leading by no more than 3 runs, and pitched at least one full inning; or (3) he entered the game with the tying run on base, at bat, or on deck.
Bat Day 1967The New York Yankees played a double-header against the Kansas City Athletics on Bat Day, July 30, 1967. The Yankees won the first game 7-2, and the second game 5-2
He amount of the new game when it comes out
The starting pitcher.