Pitching Style
Perkins throws three pitches: a four-seam fastball (95–97 mph), a two-seam fastball (93–96), and a slider (83–86). There is little variation in his pitch usage against right-handed and left-handed hitters. His velocity and effectiveness have increased since the beginning of the 2011 season, coinciding with a move to the bullpen: "Going to the bullpen allowed me to get healthy. As a starter, I had just worn down." In 2009, as a starter, Perkins posted a 5.89 ERA and an average fastball speed of about 90 mph. His ERA has dropped considerably in the bullpen (2.48 in 2011), and his K/9 rate nearly doubled. When Perkins was a starter, he also threw a curveball and changeup.
Perkins's four-seamer has become a weapon, averaging almost 96 mph in 2011 and 2012. It also has a very high (for a fastball) whiff rate of 29% in 2012.
Perkins claims to use PITCHf/x data and sabermetric statistics to study his pitching appearances.
Read more about this topic: Glen Perkins
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“American universities are organized on the principle of the nuclear rather than the extended family. Graduate students are grimly trained to be technicians rather than connoisseurs. The old German style of universal scholarship has gone.”
—Camille Paglia (b. 1947)