Little League - grounds for forfeit

[txump81]

LL Tournament Rules 4c. Pitchers once removed from the mound may not return as pitchers.

And the proper way to protest the violation along with the penalty:

B.
The use of an ineligible pitcher;
Ineligibility under this rule applies to violations of Tournament Playing
Rule 4. If an ineligible pitcher delivers one or more pitches to a batter,
that game may be subject to protest and action by the Tournament Committee
in Williamsport, subject to the following conditions:
T-12
1. At any time before the umpire(s) leave the playing field, a formal
(verbal) protest must be made to the umpire-in-chief by the manager
or coach.
2. The umpire-in-chief must immediately consult with the Tournament
Director or District Administrator.
3. Either the umpire-in-chief, Tournament Director or District Administrator
will call the Regional Headquarters at this time.
4. The Regional Director (or his/her designated agent) will contact the
Tournament Committee in Williamsport. The decision of the Tournament
Committee shall be final and binding. NOTE: The Manager is
responsible for verifying the accuracy of the pitching record on the
eligibility affidavit.

Without knowing all the details(when the protest happened, etc.), it is hard to say. The protest should have happened immediately after the game before the umpires left the field and the decision would have come from the Region HQ. We had 2 protests in our District tournament this year(1 MPR, 1 Ineligible pitcher (she pitched 1 pitch in her 8th inning)), but neither resulted in a forfeit-just manager ejections and suspensions.