Pitch Count Guide

Pitch count and rest day rules by age

Published June 28, 2026 • 6 minute read

How many pitches a young player can throw — and how long they have to rest afterward — is not a coaching opinion. It is set by the MLB Pitch Smart guidelines, which tie a daily maximum and required rest days to the pitcher's age and pitches thrown. This guide covers the full chart and how to apply it.

Quick answer: daily pitch maximums by age

The daily maximum is a hard cap for a single calendar day, not a target. Once a pitcher reaches it, they are done pitching for the day regardless of the situation.

Age	Daily max pitches
7–8	50
9–10	75
11–12	85
13–14	95
15–16	95
17–18	105
19–22	120

For the rest days that go with a specific pitch count, use the Syncrize Pitch Count & Rest Day Calculator. Pick the age, enter the pitches thrown, and it returns the required rest days and the earliest eligible return date.

The full rest day chart

Required rest scales with pitches thrown. Each cell below shows the pitch-count range that triggers that number of rest days. A blank cell means that age band caps out before reaching that rest tier.

Age	0 days	1 day	2 days	3 days	4 days
7–8	1–20	21–35	36–50	—	—
9–10	1–20	21–35	36–50	51–65	66+
11–12	1–20	21–35	36–50	51–65	66+
13–14	1–20	21–35	36–50	51–65	66+
15–16	1–30	31–45	46–60	61–75	76+
17–18	1–30	31–45	46–60	61–80	81+
19–22	1–30	31–45	46–60	61–80	81+

Notice the thresholds widen at age 15. Younger arms need rest sooner because they are still developing; older pitchers carry slightly larger workloads between rest days.

What a rest day actually means

One required rest day means the pitcher should not pitch the next calendar day and is eligible again the day after. So a pitcher who throws 60 pitches at age 12 (three rest days) and pitches on a Monday is not eligible to pitch again until Friday.

Zero required rest days means the pitcher can appear again the next day, but that is a floor, not a recommendation — back-to-back outings still add fatigue.

What counts as a pitch

Every game pitch counts: balls, strikes, and foul balls.
Warm-up pitches between innings do not count.
The count is per calendar day, across all games if a player appears in more than one.

Why pitch counts and rest days matter

Overuse is the leading controllable risk factor for youth pitching injuries. The research behind Pitch Smart links high pitch counts, pitching while fatigued, and insufficient rest to a sharply higher rate of elbow and shoulder injuries — including the kind that lead to Tommy John surgery.

Pitch counts are more reliable than innings because a pitcher can throw 35 pitches in one inning or 8 in another. Counting pitches and enforcing rest is the most direct way to manage real workload.

Other risk factors the chart does not capture

Pitching for multiple teams in the same window, which can blow past a single team's tracking.
Throwing year-round with no offseason.
Pitching while already fatigued, sore, or coming back from injury.
Radar-chasing — max-effort outings every time out.

More baseball tools and guides

Workload management sits alongside the other development questions families work through. These tools cover the rest of the picture.

Pitching velocity by age calculator — compare a radar reading to age benchmarks.
Pitching velocity by age chart — what mph benchmarks mean and how to use them.
Glove size & position finder — match glove size and web to the position.

Optional arm care gear lane

A pitch counter, an arm care band kit, and a radar gun are the three most common tools for tracking workload and protecting young arms.

Browse arm care gear

Some product links on this page may be affiliate links. Syncrize may earn a commission from qualifying purchases. See the Affiliate Disclosure.

Get the exact rest days for a pitch count.

Pick the age, enter pitches thrown, and the tool returns the required rest days and the earliest eligible return date.

Open the Pitch Count & Rest Day Calculator