A Ground Up Baseball site · GloveCode · ArmRules · BatCode · BatRules

MLB / USA Baseball Pitch Smart (guidelines) pitching rules

National guideline (not a sanctioning body) · verified · guideline only, not enforced

Limits

LevelDaily max0 days rest1 day rest2 days rest3 days rest4 days rest
Age 7-8501–2021–3536–50
Age 9-10751–2021–3536–5051–6566–75
Age 11-12851–2021–3536–5051–6566–85
Age 13-14951–2021–3536–5051–6566–95
Age 15-16951–3031–4546–6061–7576–95
Age 17-181051–3031–4546–6061–8081–105

Source: Pitch Smart Pitching Guidelines · retrieved 2026-10-16

Other limits

Consecutive-day ruleNot stated in source
Weekly / multi-day limitNot stated in source
Finish the batter at max?Not stated in source
How rest days are countedNot stated in source
Season / versioncurrent
NotesRecommendations only. Game Day USA and PBR Tournaments point teams here but do not enforce them.

Rest-day calculator

When can they pitch again? Add every day they pitched (tournaments often start Thursday).

Days pitched
DatePitches

Rest days are calendar days after the game date, so 3 days of rest after a Tuesday outing means eligible Saturday. Consecutive-day, multi-day and event caps are applied where the rule states numbers; anything else is listed as not calculated.

Pitch count calculator

How many pitches can they throw on a given day, after their recent outings?

Recent outings before that game
DatePitches

Bat rules for this organization: BatRules

Ground Up Baseball newsletter

One email for GloveCode, ArmRules, BatCode and BatRules: new glove and bat data, plus pitch-count and bat-rule changes. (Placeholder: signup is not connected yet.)