MLB Advanced Analytics: CSW Rate
Mike Alexander breaks down CSW% and takes a look at which pitchers are inducing the highest rate of called strikes + whiffs.
New metrics are popping up all over these days. It’s an exciting time to be a fantasy baseball manager. The team over at Pitcher List has been workshopping one such metric they refer to as Called Strikes plus Whiffs, or CSW. Divide the result by total pitches and it gives you CSW Rate or CSW%. It accounts for called strikes, swinging strikes, and foul tips into the glove but excludes foul balls. You’ve likely seen plenty of reference to swinging strike rate. CSW% takes things a step further incorporating the other “best” strikes of called strikes and fouls into the glove. They are the harmless strikes. Pitchers that can generate the most of them should be the most effective pitchers. To get the full breakdown give Alex’s Intro To CSW a read. The main take away from his rundown of CSW% is that it’s more strongly correlated to SIERA than SwStr% for starting pitchers. Suffice to say if you put stock in SwStr% than CSW% deserves a place in your stat rotation.
We can draw a number of...