The craft record
The craft underneath the pitch.
The craft
Wing 01 · The delivery
Mechanics
The pitch begins in the lower half, moves through the hips and trunk, and finishes at the hand. Sequence and timing make the delivery one connected motion.
The craft
Pitch Design
How a pitch gets built: read the current shape, find the arsenal gap, change one grip cue, and validate against hitters.
How pitches work together
Sequencing & Tunneling
How to make different pitches look alike early, split late, and change a hitter’s timing across the whole count.
The craft
Spin & Shape
Spin axis gives the pitch its first direction. Seam position and release feel decide whether that direction shows up cleanly.
The craft
Reading Models
Modern pitch models are useful scouting language, not the grip itself. Read them as context, then return to shape, feel, and intent.
Pitch design trends
State of the Craft
The sweeper became a named mainstream shape, the kick-change spread through coaching video, the sinker became more tactical, and the screwball remains a broken teaching lineage.
The matchup
Handedness
How pitch direction changes when the batter’s hand changes: away, into, arm-side, glove-side, and neutral vertical shapes.
Wing 10 · The lineage
The Canon
A curated reading path through classic pitching philosophy, mental routines, measurement, scouting, and modern analytical language. Solutions, not idols.
Scope boundaries
Outside the atlas
Health & Workload Boundary
A route-stable boundary: Pitch Atlas covers pitching craft, not medical, injury, workload, durability, or health-outcome claims.
Outside the atlas
Youth Training Boundary
A route-stable boundary: Pitch Atlas does not publish age-based pitch selection, workload, rest, readiness, or training prescriptions.