When Plate Discipline Sticks
A few days ago, Jake Leech asked me if Zack Cozart’s 2017 improved plate discipline would stick into 2018.
https://twitter.com/Stroke_19/status/931525718667943936
Cozart saw quite a bit of improvement with his K%-BB% dropping by 6% points.
Note: I like using K%-B% to get an overall value for a hitters plate discipline. Earlier this year, I investigated what early season stats point to a true breakout. K%-BB%, along with launch angle (FB%), were the two key factors to focus on.
| Season | BB% | K% | K%-BB% |
|---|---|---|---|
| 2016 | 7.3% | 16.5% | 9.2% |
| 2017 | 12.2% | 15.4% | 3.2% |
| 2018 (Steamer) | 8.8% | 15.6% | 6.8% |
The Steamer projection has his K%-BB% regressing closer to his 2016 values than the ones from 2017. This is how projections work with previous season stats having some weight along with some regression.