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
To the mound this week. We list out all "UP"side pitchers from the Baseball Forecaster with comments on outlooks that may have changed.
Jan 28 2026 3:09am
Jan 28 2026 3:09am
Reviewing the entire list of "UP:" batters with thoughts on those whose outlooks may have changed.
Jan 21 2026 3:02am
Jan 21 2026 3:02am
A look back at some early/mid-season Speculator calls to see how things shook out.
Sep 17 2025 3:08am
Sep 17 2025 3:08am
Our annual exercise of giving out second chances to those who, frankly, stunk up the joint in 2025.
Sep 10 2025 3:11am
Sep 10 2025 3:11am
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
