An East-to-West Slider Is Tanner Houck’s Bread and Butter

There were a few good reasons for me to catch up with Tanner Houck this past week. One is that he has arguably been the best starting pitcher in baseball over the first half of the season. Along with a 2.18 ERA and a 2.20 FIP, the 27-year-old Boston Red Sox right-hander boasts the highest WAR (3.6) among big league hurlers. Another is that I’ve been due to ask him about the pitch he relies on most. Per Statcast, Houck has thrown 41.8% sliders, 30.8% sinkers, 24.8% splitters, and 2.6% cutters.
Back in 2019, when he was pitching in Double-A, Houck was featured here at FanGraphs in an interview that focused on his sinker. Two years later, a second interview explored a developing splitter that, as my colleague Kyle Kishimoto detailed just over a month ago, has become an especially effective weapon. Which brings us to the here and now. Interested in both how Houck’s slider has evolved and how it plays within his three-pitch arsenal, I approached him to get some answers.
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David Laurila: How does the slider you’re currently throwing differ from the one you had last year?
Tanner Houck: “It’s a different grip, technically. Last year, I was running up the horseshoe a little too much and not getting as much side-to-side action. This year there is a focus of creating more east-to-west, side-to-side movement with the pitch, as well as on prioritizing throwing it more in bigger situations. It’s my best pitch by far, so I’m leveraging it whenever I can in those big moments.” Read the rest of this entry »








