Idaho High School Pitch Count Rules (IHSAA)
- Last checked Nov 1, 2026
- By Julien Levadoux
Under IHSAA rules, Idaho high school pitchers may throw up to 110 pitches a day (varsity, rest of the season). Up to 35 pitches needs no rest; 86 or more needs 3 calendar days of rest. The other tables and the extra limits are below.
The IHSAA rest tables
Varsity, first 30 days of the season · 88 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–28 | None: may pitch the next day |
| 29–49 | 1 calendar day |
| 50–70 | 2 calendar days |
| 71–88 | 3 calendar days |
Varsity, rest of the season · 110 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–35 | None: may pitch the next day |
| 36–60 | 1 calendar day |
| 61–85 | 2 calendar days |
| 86–110 | 3 calendar days |
Sub-varsity, first 30 days of the season · 70 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–28 | None: may pitch the next day |
| 29–49 | 2 calendar days |
| 50–70 | 3 calendar days |
Sub-varsity, rest of the season · 85 pitches a day at most
| Pitches in a day | Rest before pitching again |
|---|---|
| 1–25 | None: may pitch the next day |
| 26–35 | 1 calendar day |
| 36–60 | 2 calendar days |
| 61–85 | 3 calendar days |
Other limits
- Two rest charts per level: the first 30 days of practice and games use the lower early-season chart, then the second chart applies.
- Pitchers may not throw more than the top of the applicable chart (88/110 varsity, 70/85 sub-varsity); 110 varsity / 85 sub-varsity is also the cap for a doubleheader or tripleheader day.
- Only the starting pitcher may finish the batter when reaching the daily limit; a relief pitcher who reaches it may not finish the at-bat.
- A pitcher may not pitch on three consecutive days, regardless of pitch count.
- Varsity: no more than 100 pitches over two consecutive days; sub-varsity: no more than 60 over two days. Reaching that two-day limit requires two days of rest, and the pitcher may not finish the batter.
- Players pitching at multiple levels combine pitches and use the VARSITY chart for rest.
- Penalty: the game in which a violation occurred is a forfeit. Failing to report pitch counts to MaxPreps (by noon the next day or before the next game) means referral to the board of control and a two-game suspension for the coach.
- Idaho rules follow Idaho teams when they play out of state.
Source: IHSAA Baseball handbook (IHSAA baseball handbook for 2027). Checked Nov 1, 2026.
The calculator above is set to Idaho. 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 Varsity, rest of the season table, a pitcher who throws 73 pitches on a Tuesday needs 2 calendar days of rest, so the first day they can pitch again is Friday. The most rest any Idaho table requires is 3 days.
More than one table
Idaho doesn’t use one table for everyone. Varsity, first 30 days of the season: up to 88 pitches a day, 71+ pitches means 3 calendar days of rest. Varsity, rest of the season: up to 110 pitches a day, 86+ pitches means 3 calendar days of rest. Sub-varsity, first 30 days of the season: up to 70 pitches a day, 50+ pitches means 3 calendar days of rest. Sub-varsity, rest of the season: up to 85 pitches a day, 61+ pitches means 3 calendar days of rest. Pick the one that fits in the calculator; all 4 are printed below it.
Where the rule comes from
These numbers are from the association’s own document: [IHSAA Baseball handbook](https://idhsaa.org/asset/BASEBALL/Baseball 27.pdf), read as the IHSAA baseball handbook for 2027. 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.