“Houser (3-3) picked up the win on Saturday, allowing two runs on five hits over six innings in a 6-2 victory over the Marlins,“ RotoWire News reported. “He struck out ten without walking a batter.”
That’s a straightforward blurb. Nothing really stands out, so I understand if you forgot about it. Adrian Houser himself isn’t a very notable pitcher – his repertoire, which consists primarily of a sinker and an assorted mix of other pitches, doesn’t scream Pitching Ninja material. Against the Marlins a week ago, however, Houser entered uncharted territory in the realm of pitching. Not all outliers are worth mentioning, but this one is:

The graph is messy, but you can still see what happened. Ten strikeouts tied a career-high for Houser, which he reached on August 10, 2019. This time around, though, the journey there was markedly different. For the first time in his career, Houser threw his sinker over 70% of the time. He’d been high-strikeout in some games, high-sinker in others, but the two attributes had never converged so clearly until now. It’s not as if those sinkers were setting up a different pitch, either. Of the 10 strikeouts Houser collected, eight came from the sinker, while the remaining two came from the changeup and the curveball. For the most part, one pitch bookended each plate appearance.
This is remarkable if you know at least a smidgen of pitching. For one, the sinker isn’t a strikeout pitch! Its intended purpose is to induce grounders from hitters, not collect whiffs. Second, unless you’re a reliever, who throws a sinker or any one pitch that often? You’d imagine that hitters would catch on at some point. Yet Houser emerged relatively unscathed. The home run, double, and single that led to two earned runs weren’t even recorded off his sinker. Read the rest of this entry »