This is how you throw a screwball: grip the ball across the top seams of the ball. You twist your wrist so it spins sideways. The screwball runs opposite if a slider so inside on a batter.
Type of Pitches
Fastballs: Four-seam Fastball, Two-seam Fastball, Splitter, Cutter, Sinker, Forkball
Off speed: Changeup, Palmball, Screwball,Knuckleball
Breaking Pitches: Curveball, Slurve, Slider