How to throw a faster fastball<br>Perfect your grip. There are two primary grips for the fastball: the four-seam and the two-seam. The four-seam generally gathers more velocity but some pitchers find the two-seam more comfortable and easier to command.
There are more than two thousand primary grips for the fastball.
( z1 grip :ARG1 ( z2 fastball ) :quant ( z3 more-than :op 2000 ) :mod ( z4 primary ) )