FanShot

Pitch Splits Suggest Fister's Curveball is the Cause of his Improvement

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It's not behind a pay wall, but the main part is: "Curveball Mariners, 2010-2011: .287/.317/.465 Tigers, 2011-2013: .157/.224/.229 With the Mariners, batters swung and missed on Fister's curve 27 percent of the time; with the Tigers, it's been 40 percent swing-and-miss." Edit: I don't know why the format turned out like this.