LL Tournament
 

Special Pinch Runner: Must use someone NOT in the current lineup. Only once per game.

Here's a follow on question, that WP hasn't answered yet:

A SPR is put in, a couple of outs are recorded, and the manager would like this SPR to sub in and bat. Can the original runner be put back on base, so the SPR can come into the lineup and bat?

Almost, but not quite...

SPR Calvinball...
Each player can be SPR'd "for" only once per game.
A SPR can only be done once per inning.
The player serving as SPR must not be in the current batting order - no restriction on how many times a player can serve as a SPR.

Not specifically SPR, but related...
While on offense, subs can only be made when the batting position is at the plate or on base. "Advance/projected/future" substitutions are not allowed.

The SPR, assuming he was never placed in the lineup, must fulfill MPR sometime before games end. Pinch running does not satisfy MPR.

So the answer to your question is a qualified yes.

Thank you for elaborating. I was being lazy. :(