Pitch Arsenal

10 stages

Grips, Movement & Sequencing

Every pitcher tells a story with their arsenal — a sequence of speeds, shapes, and locations designed to keep hitters off-balance and guessing wrong. This epoch goes deep on every pitch type from the four-seam fastball to the splitter, covering grip mechanics, spin science, movement physics, and the Rapsodo revolution that transformed how Dodger pitching coaches develop arms. From Clayton Kershaw's El Diablo curveball to Mariano Rivera's career-ending cutter to Hideo Nomo's devastating forkball, you will learn to grip, throw, and sequence every weapon in a complete pitcher's arsenal — and build your own repertoire the right way.

🎯

Decision Bank

Drill every decision from this epoch in one shuffled set — practice, not graded, fresh each run →

→⚾

Situational Defense by Position

Where's the play? A combined drill of defensive reads across all eight positions →

→

Pitch arsenal content references publicly available spin rate data and pitch classification information for educational purposes.

Playing as Guest —Sign into save progress.

⚾

Dodger Stadium — The Mound

Four-Seam Fastball