SPECULATOR: In-season pitch changes, 2019
Jul 31 2019
As we all know, in-season pitcher performance comes with peaks and valleys. Sometimes we can chalk it up to simple variance—a hot or cold stretch where command comes or goes, balls find holes at the wrong time, etc. Other times, a tangible change in a pitcher's pitch mix, release point, or velocity might be driving those new levels of performance. It's those "other times" that draw our speculative eye.
The advancement of pitch-level data allows us to track such things, so we'll look at eight pitchers who've switched things up this season to the benefit of their skills and/or results. All pitch graphs are courtesy of BrooksBaseball.net, with statistics through July 28.
American League
Lucas Giolito (RHP, CHW)
We can see a big change in...
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
Can we extract fantasy value from September auditions? Plus, a quick check on how team schedules shake out over the final month.
Aug 27 2025 3:06am
Aug 27 2025 3:06am
A mid-summer check on whose skills have improved or faded the most from the beginning of the season.
Aug 20 2025 3:06am
Aug 20 2025 3:06am
Continuing our look at what we've seen from this year's rookie class with revised, speculative outlooks going forward.
Aug 13 2025 3:09am
Aug 13 2025 3:09am
Our annual exercise checking in on the MLB returns from this year's rookie class, and speculating on revised outlooks going forward.
Jul 30 2025 3:09am
Jul 30 2025 3:09am
QBaB scores have been integrated into the site this year, so let's take them for a spin.
Jul 23 2025 3:07am
Jul 23 2025 3:07am
