Yes, pinch runners do have to replace whoever they're pinch running for unless of course the pinch runners gets substituted for a defensive replacement in the next half of the inning.
You can have as many pinch runners as necessary. Of course, there are only 25 active players in the roster. In the American League, 10 of those players are already started in the game, leaving 15 players. Technically you could use 15 pinch runners if you really wanted to. Once a player is removed from the game, he cannot come back.
The Tigers used 3 in a game on 10/6/09 against the Twins, but I'd guess that the record is 4 or 5.
yes you are the pinch hitter is the replacement
Handy Manny - 2006 Rusty's Little Light Lie Squeeze in a Pinch 1-6 is rated/received certificates of: Australia:G
Total bases is not relevant with pinch runners. Total bases is only relevant with batters and is a statistical category used to measure a baseball player's effectiveness at the plate. So the pinch runner would be credited with 0 total bases. However, the run scored would be credited to the pinch runner.
Yes. Pinch runners can be used if a certain player is slow or if the batter is the catcher, and needs to get his/her gear on. The next time at bat the batter must stay in the lineup and bat when it is his/her turn. This is the same thing for a pinch batter.
The pitcher of record, i. e., the pitcher who was the player who last pitched, would get credit for the win. The pinch hitter or pinch runner is not considered the pitcher until he takes the mound, not when he replaces the pitcher as a pinch hitter or pinch runner. To further explain, even if the pinch hitter or pinch runner, or another pitcher enters the game to pitch after the end of the inning in which they pinch hit and/or pinch ran, and the losing team does not tie the game, or go ahead, that previous pitcher (the one that was pinch hit for, or pinch ran for) gets credit for the win.
Manny Ramirez will be eligible to play in an official game again on July 3.