2012’s Most Unhittable Pitch (By a Starter)
Shortly after the Mariners made the mistake of trading Brandon Morrow for Brandon League and another guy, it was noted by the Mariners’ front office that, the season before, League had thrown baseball’s most unhittable pitch. No pitch in baseball, apparently, generated a lower contact rate against than Brandon League’s splitter, and that gave us Mariners fans something to look forward to. What it actually wound up doing was give us something to complain about all the time, but no matter. That was the first I’d personally heard of a most unhittable pitch, and I fell in love with the concept. What better measure of dominance than whiffs over swings?
Of course, we all understand that pitches don’t exist in isolation. That year, League’s splitter was baseball’s most unhittable pitch, but it wouldn’t have been so if League only ever threw his splitter and never threw his fastball. There’s a lot of game theory stuff at play, so isolating individual pitch types is a little improper and misleading. Still, it’s a fun exercise, and I’m about to indulge. So we’re all about to indulge.