The number of innings for a 12-13yo baseball player in a weekend would be 6-10 (varies by sanction's pitching rules).
- LL has the most restrictive rules - max would be 120-130 pitches (35 on Fri and 85-95 on Sunday).
- PONY hasn't changed for at least 10 years (10 innings per week, 7/day with 40 hrs rest after 4+) - 10 IP (3 Fri & 7 Sun)
- USSSA has a 3-day limit of 8 innings. Max per day is 6-7 and 3 to pitch next day.
Stop Sports Injuries has developed guidelines for FP softball (
Softball Injury Prevention). Using an average of 16 pitches per inning, their max would be 12-19 innings.
- For 12yo, 65 pitches per
game, 95/day for 1-2 consecutive days - 190 pitches (95 pitches/day for only 2 of 3 days).
- For 13yo, 80 pitches per game, 115/day for days 1-2 and 80 on 3rd day - 310 pitches
Stop Sports Injuries references LL's rules for baseball.
Softball pitchers can safely pitch more than baseball, however there are limits. Parents and coaches need to avoid the false sense of security that a lack of discomfort means they're okay and aren't being harmed.