Arizona High School Pitch Count Rules (AIA)
- Last checked Nov 1, 2026
- By Julien Levadoux
Under AIA rules, Arizona high school pitchers may throw up to 105 pitches a day (juniors and seniors). Up to 30 pitches needs no rest; 76 or more needs 4 calendar days of rest. The other tables and the extra limits are below.
The AIA rest tables
Freshmen · 95 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–20 | None: may pitch the next day |
| 21–35 | 1 calendar day |
| 36–50 | 2 calendar days |
| 51–65 | 3 calendar days |
| 66–95 | 4 calendar days |
Sophomores · 95 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–30 | None: may pitch the next day |
| 31–45 | 1 calendar day |
| 46–60 | 2 calendar days |
| 61–75 | 3 calendar days |
| 76–95 | 4 calendar days |
Juniors and seniors · 105 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–30 | None: may pitch the next day |
| 31–45 | 1 calendar day |
| 46–60 | 2 calendar days |
| 61–75 | 3 calendar days |
| 76–105 | 4 calendar days |
Other limits
- Limits go by the pitcher's school year (grade), not team level; applies to varsity, JV and freshman teams in all conferences.
- If the maximum is reached mid at-bat, the pitcher may finish that at-bat.
- All game pitches to batters count; warm-ups do not.
- Both teams track and confer; in a dispute the home team's count is official.
- Pitch counts must be entered on the AIA Dashboard (or MaxPreps/GameChanger) right after the game; restricted-pitcher alerts go out at 10 am on game day.
- Penalty: a winning team that violates forfeits the game and gets a violation; a losing team gets a violation only. Other non-compliance falls under AIA Bylaw 16.1.
Source: AIA pitch count rule (Article 21.1.5) (AIA pitch count protocol, 2026). Checked Nov 1, 2026.
The calculator above is set to Arizona. Enter the pitches thrown and the day, and it shows the rest required and the first day the pitcher can throw again.
How to read the rule
Rest is counted in calendar days, after the day the pitcher threw. On the Juniors and seniors table, a pitcher who throws 68 pitches on a Tuesday needs 3 calendar days of rest, so the first day they can pitch again is Saturday. The most rest any Arizona table requires is 4 days.
More than one table
Arizona doesn’t use one table for everyone. Freshmen: up to 95 pitches a day, 66+ pitches means 4 calendar days of rest. Sophomores: up to 95 pitches a day, 76+ pitches means 4 calendar days of rest. Juniors and seniors: up to 105 pitches a day, 76+ pitches means 4 calendar days of rest. Pick the one that fits in the calculator; all 3 are printed below it.
Where the rule comes from
These numbers are from the association’s own document: AIA pitch count rule (Article 21.1.5), read as the AIA pitch count protocol, 2026. Associations can change their rules between seasons, so if the season is about to start, check the association’s current baseball manual too. Your league or tournament may also set stricter limits than the state.
Keeping the count is usually the coaches’ job, often with both teams’ counts compared after the game. The pitch count log has a line for every pitcher and game.