Baseball Pitch Count and Rest Interpreter
Baseball Pitch Count and Rest Interpreter
How many calendar days of rest a pitch count requires, on the brackets Major League Baseball’s Pitch Smart programme and Little League’s Regulation VI publish by age. The same numbers are guidance under one body and an enforceable rule under the other — and Major League Baseball sets no pitch limit at all for its own pitchers.
Days of rest this pitch count requires
Published age bracketsA 13-to-14 age group pitcher who threw 70 pitches, under MLB Pitch Smart’s published guidance
Pitch Smart’s daily maximum and rest brackets, by age
| Age | Daily maximum | No rest | One day | Two days | Three days | Four days |
|---|---|---|---|---|---|---|
| 7 to 8 | 50 | 1 to 20 | 21 to 35 | 36 to 50 | not applicable | not applicable |
| 9 to 10 | 75 | 1 to 20 | 21 to 35 | 36 to 50 | 51 to 65 | 66 to 75 |
| 11 to 12 | 85 | 1 to 20 | 21 to 35 | 36 to 50 | 51 to 65 | 66 to 85 |
| 13 to 14 | 95 | 1 to 20 | 21 to 35 | 36 to 50 | 51 to 65 | 66 to 95 |
| 15 to 16 | 95 | 1 to 30 | 31 to 45 | 46 to 60 | 61 to 75 | 76 to 95 |
| 17 to 18 | 105 | 1 to 30 | 31 to 45 | 46 to 60 | 61 to 80 | 81 to 105 |
| 19 to 22 | 120 | 1 to 30 | 31 to 45 | 46 to 60 | 61 to 80 | 81 to 105 |
The same numbers under two bodies, and what differs
| MLB Pitch Smart | Little League, Regulation VI | |
|---|---|---|
| Status | guidance — each organisation “should establish rules” to enforce it | an enforceable playing rule with a regulation number |
| Enforcement | none stated anywhere on the page | the manager must remove the pitcher on reaching the limit |
| Youngest band | 7 to 8 | league age 6 to 8 |
| Ages 13 to 16 | split into 13 to 14 and 15 to 16 | one band, 13 to 16 |
| Above league age 16 | 17 to 18 and 19 to 22 both carried | nothing published |
| Rest brackets where both apply | identical, digit for digit | identical, digit for digit |
| Advisory body named | none — the guidance is attributed only to “Experts” | the regulation is the organisation’s own |
What this page covers and what it does not
| Here | Elsewhere | |
|---|---|---|
| Pitch Smart’s brackets, ages 7 to 22 | yes | — |
| Little League’s Regulation VI, league ages 6 to 16 | yes | — |
| Major League Baseball’s own pitchers | there is no pitch limit to apply | none is published, and that is the finding |
| NFHS and state high school pitch-count policies | no — none was read for this page | each state association’s own document |
| The NCAA, NPB and the KBO | no — none was read | each competition’s own document |
| Innings limits and months off | quoted in a note above, not computed | Pitch Smart’s own ages-15-18 page |
| Any medical or clinical judgement | no, and none is implied anywhere | a clinician; this page only reports what two bodies publish |
The same brackets, published as guidance by one body and as a rule by another
Everything on this page is some body’s rule for some period, and none of it is a property of baseball. Major League Baseball, the minor leagues, Nippon Professional Baseball, the KBO League, the NCAA, US high school baseball under the NFHS and Little League all publish their own, they do not agree with each other, and several of the numbers below changed within the last five years on dates their own announcements give. So every figure here is printed with the body that published it and the season or edition it belongs to, and where this page could not read a competition’s own document it says so rather than assuming the rule carries across.
What the two bodies publish, and why this page trusts the tables it read. Major League Baseball runs a programme called Pitch Smart whose guidelines page carries a daily maximum number of pitches for each age group and, beside it, the number of calendar days of rest that each band of pitch counts requires. Little League publishes the same shape of thing as Regulation VI of its own playing rules. Both came through as real text rather than as images when they were read on 15 October 2026, and both were checked for what was missing rather than only for what was there. Pitch Smart’s summary table was then corroborated against that site’s own separate ages-15-18 page, which repeats two of its rows digit for digit, and Little League’s brackets match Pitch Smart’s wherever the two bodies’ age bands overlap. Three readings agreeing is why the table above is printed rather than hedged.
The brackets are discrete, which is the only reason this page can exist at all. Most published sports tables cannot be implemented here: this site’s calculator engine has no table lookup, so a reference table has to be a chain of conditions, and a fitted approximation of a curve would be wrong at the extremes — which is why this section carries an explainer rather than a calculator for the run expectancy matrix. A pitch-count rest table is different in kind. It is a step function over a handful of exact integer boundaries published by a named body, nothing is interpolated and nothing is estimated, so the page above is the rule itself rather than a model of it.
The interesting finding is not the numbers — it is that the same numbers have two different statuses. Little League’s are rules. Regulation VI(d) says “If a player pitches 66 or more pitches in a day, four (4) calendar days of rest must be observed”, and Regulation VI(c) requires the manager to remove the pitcher on reaching the daily limit, with an allowance to finish the batter then at the plate. Pitch Smart’s are guidance: there is no sentence anywhere on that page calling the limits guidelines rather than rules, and the closest it comes is saying that each organisation “should establish rules to ensure that players must follow the guidelines” — which is a body asking somebody else to do the enforcing. So an identical pitch count can be a breach of a rule in one competition and a departure from advice in another, with no difference in the arithmetic at all. That is exactly the shape of thing this site’s brief says to print with the body attached.
Two inconsistencies on Major League Baseball’s own pages, recorded rather than tidied away. The first is cosmetic and confusing: the guidelines table’s age rows run 7-8, 9-10, 11-12, 13-14, 15-16, 17-18 and 19-22, while the same site’s navigation for the same guidance runs 8 and under, 9 to 12, 13 to 14, 15 to 18 and 19 to 22. A reader following the navigation to a page for ages 9 to 12 is being sent to two different table rows. The second is substantive, and the page above reports it rather than papering over it: the 19-to-22 row gives a daily maximum of 120 pitches and then carries the 17-to-18 row’s rest brackets, whose top band ends at 105. A count of 110 is therefore inside the published maximum and outside every published bracket. Extending the four-day band to cover it would be inventing a figure Major League Baseball does not publish, so this page says the gap exists instead. A third absence is worth naming: the guidelines are attributed to “Experts” and to no named medical or advisory body anywhere on the page.
A pitch count is not the whole of either body’s guidance, and two of the limits cannot be expressed as one. Pitch Smart’s ages-15-18 page adds that a pitcher should “Do not exceed 100 combined innings pitched in any 12-month period”, should “Take at least four months off from competitive pitching every year” with “at least 2-3 continuous months off from all overhead throwing”, should “Avoid playing catcher while not pitching”, and should not pitch in two games on the same day. And it says that “No pitcher shall appear in a game as a pitcher for three consecutive days, regardless of pitch counts” — a limit that no number entered above can trigger, because it is about the pattern of appearances rather than the size of any one of them. Those are quoted in the notes on this page and are deliberately not computed, because turning a twelve-month innings cap into a verdict on one game would be answering a question nobody asked.
And at the top of the sport there is no limit at all. Pitch Smart’s brackets stop at the 19-to-22 group, and Major League Baseball publishes no pitch limit and no rest requirement for a major league pitcher: how long a starter is left in is a manager’s judgement, which is why that subject produces arguments rather than rule checks. This page makes no clinical claim of any kind — it reports what two named bodies publish and nothing further. The regulation that does govern how long a professional game runs is on the game length and extra innings interpreter, the verdict most often used to describe a starter’s outing is on the quality start interpreter, and the rates that describe the work itself are on the earned run average calculator and the WHIP and pitching rates calculator.
Frequently asked questions
How many days of rest does a pitch count require?
On the published brackets, for ages 13 to 14: none up to 20 pitches, one day at 21 to 35, two days at 36 to 50, three days at 51 to 65 and four days from 66 up to the daily maximum of 95. Ages 15 and over are on a wider set — none to 30, one day to 45, two days to 60, three days to 75 or 80 depending on age, four days above that.
What is the maximum number of pitches by age?
50 for ages 7 to 8, 75 for 9 to 10, 85 for 11 to 12, 95 for 13 to 14 and for 15 to 16, 105 for 17 to 18 and 120 for 19 to 22, under MLB’s Pitch Smart guidelines. Little League’s Regulation VI(c) gives the same figures for the bands it covers, which run from league age 6 to 16 and stop there.
Are Pitch Smart’s limits rules?
Not by themselves. There is no sentence on the page calling them guidelines rather than rules, and the closest it comes is asking that each organisation “should establish rules to ensure that players must follow the guidelines”. Little League’s identical brackets ARE rules, with a regulation number and a requirement that the manager remove the pitcher on reaching the limit.
Does Major League Baseball limit how many pitches its own pitchers throw?
No. Pitch Smart’s brackets stop at the 19-to-22 age group and no pitch limit or rest requirement is published for a major league pitcher at all — a starter’s workload is a manager’s decision. That absence is the answer rather than a gap in this page.
Why does this page say no rest figure is published for some counts?
Because of a gap in Major League Baseball’s own table. The 19-to-22 row gives a daily maximum of 120 while carrying rest brackets that stop at 105, so a count between 106 and 120 is inside the maximum and outside every bracket. Extending the top band to cover it would mean inventing a number the body does not publish.
Is there anything a pitch count cannot tell you?
Two things at least, both from Pitch Smart’s own pages. “No pitcher shall appear in a game as a pitcher for three consecutive days, regardless of pitch counts” is about the pattern of appearances rather than the size of one, and the 100-innings-in-12-months and four-months-off recommendations are about a year rather than a game. Both are quoted on this page and neither is computed.
Related calculators
References
- Major League Baseball. Pitch Smart: Guidelines for Youth and Adolescent Pitchers, mlb.com/pitch-smart/pitching-guidelines — the daily maximum pitches and the required calendar days of rest by age, as real text rather than an image. Ages 7-8, maximum 50, rest brackets 1-20 none, 21-35 one day, 36-50 two days, with the three- and four-day columns marked N/A; 9-10, maximum 75; 11-12, maximum 85; 13-14, maximum 95, all three on the same 1-20/21-35/36-50/51-65/66-max brackets; 15-16, maximum 95, on 1-30/31-45/46-60/61-75/76-95; 17-18, maximum 105, and 19-22, maximum 120, on 1-30/31-45/46-60/61-80/81-105. TWO THINGS ARE RECORDED RATHER THAN RESOLVED: the table’s age rows do not match the page’s own navigation groups (8 and under, 9-12, 13-14, 15-18, 19-22), and the page names no outside medical or advisory body at all, attributing the guidance only to “Experts” under a footer reading “© 2026 MLB Advanced Media, LP”. There is no sentence anywhere on it calling the limits guidelines rather than rules; the closest is that each organisation “should establish rules to ensure that players must follow the guidelines” (read 15 Oct 2026).
- Major League Baseball. Pitch Smart: Ages 15-18, mlb.com/pitch-smart/pitching-guidelines/ages-15-18 — fetched separately as a corroboration check and repeating the 15-16 and 17-18 rows digit for digit, which is why the table above is not treated as a confabulation. It adds the recommendations the summary page omits: “Do not exceed 100 combined innings pitched in any 12-month period”; “Take at least four months off from competitive pitching every year”, “including at least 2-3 continuous months off from all overhead throwing”; “Avoid playing catcher while not pitching”; “Players should not pitch in multiple games on the same day”; and “No pitcher shall appear in a game as a pitcher for three consecutive days, regardless of pitch counts.” It names no advisory body either (read 15 Oct 2026).
- Little League Baseball. Regular Season Pitching Rules, littleleague.org/playing-rules/pitch-count — Regulation VI(c) maximum pitches in a day by league age: 6-8, 50; 9-10, 75; 11-12, 85; 13-16, 95. Regulation VI(d) rest for ages 14 and under: “If a player pitches 66 or more pitches in a day, four (4) calendar days of rest must be observed”, 51-65 three days, 36-50 two days, 21-35 one day, 1-20 none; league ages 15-16 take a separate set, 76 or more four days, 61-75 three, 46-60 two, 31-45 one, 1-30 none. The manager MUST remove the pitcher on reaching the limit, with an allowance to finish the batter then at the plate. Unlike Pitch Smart these are enforceable playing rules with a regulation number, and their age bands differ: Little League starts at 6 where Pitch Smart’s table starts at 7, and Little League treats 13-16 as one band where Pitch Smart splits 13-14 from 15-16. Tables came through as text (read 15 Oct 2026).
- Major League Baseball. Glossary: Innings Pitched (IP) — “Because there are three outs in an inning, each out recorded represents one-third of an inning pitched.” The entry does NOT state the “.1 and .2” scorebook notation, so this page demonstrates the notation from published lines instead. mlb.com (read 12 Oct 2026).
- National Federation of State High School Associations. NFHS Baseball Rules, Rule 4-2-1 — “A regulation interscholastic game consists of seven innings (turns at bat)”. Read on baseballrulesacademy.com, 12 Oct 2026; that reproduction carries no edition year, so the seven innings are cited as the NFHS’s standing rule rather than dated to a season.