This is how you throw a two-seam Fastball: Grip it on top of the baseball wih fingers on seams as show in picture. A two seam fastball tails off and is one or two mph slower than a four-seam.
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