SPECULATOR: In-season pitch mix changes
Jul 26 2023
Earlier this year, we looked at early Change Score risers to help identify which pitchers have changed their pitch mix the most from 2022 through early May of 2023. With two months of fresh data since that post, it's time for an update to see who has switched things up during the season, and whether it's working.
As a quick refresher, Change Score is the total difference in pitch usage across a pitcher's entire arsenal. For example, if a pitcher starts throwing a new sinker 30% of the time and throws his four-seamer 30% less to make room for it, his Change Score is 30 + 30 = 60.
An important caveat: a pitch mix change isn't always a good thing! You'll see examples of this below (red = bad in the chart), but just because someone changes...
Almost!
You’re just a few clicks away from accessing this feature and hundreds more throughout the year that have a singular goal in mind: Winning your league. Subscribe to BaseballHQ.com here!
Already a subscriber? Sign in here
More From Speculator
With skills so bad, we can only speculate on an underlying injury. We hope we're wrong!
Apr 29 2026 3:05am
Apr 29 2026 3:05am
Our annual "draft skills, not roles" using projected skills and year-to-date playing time.
Apr 22 2026 3:05am
Apr 22 2026 3:05am
With most pitchers 3-4 starts in, we dive into the sub-indicators to see who's rising and falling.
Apr 15 2026 3:06am
Apr 15 2026 3:06am
Using our Quality of Batted Ball (QBaB) metric to make some speculative hitter snap judgments.
Apr 8 2026 3:06am
Apr 8 2026 3:06am
Baseball is back, and it's time to overreact... because what else are we supposed to do?
Apr 1 2026 3:08am
Apr 1 2026 3:08am
