"For the purposes of measuring expected run value based on stuff (StuffRV), I used velocity, horizontal movement, and vertical movement as my three independent variables, and restricted my sample to only righties who released the ball from at least five feet off the ground, with a minimum of 1,000 pitches over the last three years. To the leaderboards."

This is really cool stuff. Ha, a pun!

h/t: Tango