Pitch Design: Straightening Out Chris Paddack’s Curveball
San Diego Padres right-hander Chris Paddack had a pretty good first major league season. He struck out 153 hitters in 140.2 innings and posted a 0.98 WHIP with a 3.33 ERA and a 3.95 FIP. Amazingly, he did it with basically two pitches: a four-seam fastball and a changeup. Paddack also has a curveball that he has often tinkered with, but its use never eclipsed 15% in any count. It mainly appeared as the first pitch of the at-bat or when he was ahead in the count. Despite being able to keep hitters under control with two options for most of last season, one of the multiple curveball variations Paddack resorted to works best, both statistically and as an ideal fit with his four-seam and changeup.
Here’s a visual summary of Paddack’s three pitches in an isolated overlay example, which accounts for the typical location of each pitch last season:
Paddack has a well-designed, pure backspinning four-seam fastball with a 12:50 spin direction and nearly 100% spin efficiency. In terms of whiffs, the pitch was best when Paddack kept it high in the zone. When it came to contact, the four-seamer didn’t really have an advantageous location, with the exception of keeping the pitch out of the middle of the strike zone. Paddack held hitters to a .276 wOBA and demonstrated good control of the pitch as evidenced by his 0.18 BB/K-rate. Read the rest of this entry »