Calculate required rest days from a pitch count using MLB and USA Baseball Pitch Smart limits for ages 7–22, or the most pitches allowed for planned rest.
Pitch Smart Pitch Count and Rest Calculator
This calculator applies the current MLB and USA Baseball Pitch Smart daily maximums and full-rest thresholds for pitchers ages 7 through 22. It can read an outing’s rest requirement or reverse the table for a planned rest window.
Daily Maximums
- Ages 7-8: 50 pitches per day.
- Ages 9-10: 75 pitches per day.
- Ages 11-12: 85 pitches per day.
- Ages 13-16: 95 pitches per day.
- Ages 17-18: 105 pitches per day.
- Ages 19-22: 120 pitches per day.
Rest Thresholds Change With Age
Ages 7-14 use 20, 35, 50, and 65-pitch breakpoints, subject to the age band’s daily maximum. Ages 15-16 use 30, 45, 60, and 75; ages 17-18 use 30, 45, 60, and 80. Ages 19-22 add a fifth rest day above 105 pitches.
Planned-Rest Mode
The inverse mode does not invent a continuous formula. It selects the largest published pitch ceiling whose required rest is no greater than the planned number of full days.
Using the Result
Pitch Smart is a workload framework. Eligibility, pitch-count administration, and any stricter limits remain controlled by the rules of the applicable league, school, team, or event.
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Sources
Major League Baseball and USA Baseball. Pitch Smart – Guidelines for Youth and Adolescent Pitchers.
