Overview
Roughly half a million players across American high schools, and the main pipeline into both the draft and college rosters.
High school baseball is played at around 16,000 American schools by roughly half a million students, making it one of the largest participation sports in the country. Rules are written by the NFHS and each state association runs its own season and playoff.
It is a direct feeder to both professional and college baseball: high school players are eligible for the MLB draft, and those who choose college must then wait three years before becoming eligible again.
Season Format
History
Interscholastic baseball is among the oldest school sports in the United States, organised from the late nineteenth century. Pitch-count limits designed to protect young arms were mandated nationally by the NFHS in 2017 after long concern about overuse injuries.
Year-round travel and showcase circuits now sit alongside the school season and, for elite prospects, often carry more recruiting weight.
Governance
The NFHS writes the playing rules; state associations govern eligibility and championships.