Schad wrote:Skin Blues wrote:They're projecting him for 1.72 HR/9 which is kind of insane. Not only is it well above anything he's ever allowed, but even since the new Rabbit Ball the past two seasons only 3 qualified pitchers have done that. To say that's his mean expectation, and that half of the theoretical outcomes will be worse than that, is crazy. He's not gonna be great, but something seems wonky in the formula.
Particularly when they have his GB% normalizing over last year's career low. I'm not going to do the math on what he'd need for a HR/FB rate to achieve that, but I'm guessing the answer is "most".
Looking at the Steamer projections more closely, there are 18 guys projected for a HR/9 >1.7 and also at least 20 starts. Including: Chase Anderson at 1.91 HR/9, Trent Thornton and Matt Shoemaker at 1.74. All would be career highs, by far. Shoemaker has HR/9 under 1.00 in each of the past two seasons with the new ball (albeit in only 12 starts) and they expect him to double that. Julio Teheran the past two seasons has averaged 1.23 HR/9, 1.16 for his career, and is projected for 1.75.
As I said, the past 2 years during the HR explosion, only 3 qualified pitchers had HR/9 above 1.72 which indicates those are outliers, and not an expectation. There's a bit of a survivor bias since the truly terrible non-Orioles would have lost their rotation spot before they made enough starts to qualify if they gave up 2 HR/9. But even still, something is up here. Maybe Steamer knows something about the new ball that nobody else does. Or more realistically, the change in the ball has screwed up their algorithm.