There seem to be several answers that are dancing around the issue. We're in the third or fourth inning, the same kid who was pitching comes out to continue, and his manager suddenly realizes the kid is at 50 pitches and he wants to pull him so he can use him to pitch Monday. Game day was Friday. 2 days rest required. If he throws another pitch, he becomes ineligible on Monday.
@Jimurray, correct, tournament rules were in effect. The game was held up. Tournament officials called their district DA who says he called WR and they said the pitching change was ok. We played on, however, I still don't agree. I'm in the camp where he warmed up and now has to throw a pitch to the next batter.