Substitution Question
 

Fed rules

F8 is injured and must leave the game. Team A has one player on the bench, but he has already been used as a pinch hitter and removed from the game.

Does Team A continue the game with 8 players? Is there ever a situation where a substitute can be "re-used" for lack of a better word?

Continue with 8.

If F8 was on base, then someone (the previous batter not on base?) gets to run until put out or scores.

No. "A substitute who is withdrawn may not reenter." 3-1-3

You need to re-think that answer.

See case play 4.1.1B

Who does? Both my comment and Maven's seem to be correct.

It's 4.4.1B, thanks. I didn't have my books handy when I sent the previous answer.

FED Substitution
 

Hello,

The fact that a substitute has been used and then removed from the game; makes him ineligible for the remainder of the game. A starter will have re-entry capabilities. The fact that team A was down to eight eligible players, does not open the gate for allowing an ineligible player.

I hope this helps...you can also see the substitution rule in your NFHS rule-book.

Utah Golf

Read post #5 please.

The player referred to in 4.4.1.B is a courtesy runner, not a substitute.

Player on the bench was a pinch runner who was removed from the game. He had no re-entry.

No, he doesn't... you do! A substitute once removed cannot re-enter.

Team A must forfeit. There is no provision for courtesy runners.

Please check your Fed Rules, Curtesy runner is available for the pitchers' or catchers' position. It a speed up rule.

Speed-up rules are by state adoption. My state permits them by mutual agreement of the coaches prior to the game and only for non-conference games.

Correct, but not relevant to the OP, which deals with a "courtesy runner" for an injured runner, when no subs are available. This particular "courtesy runner" (last batter not on base) is allowed by rule, and does not require a state adoption.