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Old 02-03-2019, 10:43 PM   #6
RonCo
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Join Date: Aug 2003
Posts: 9,502
I created a 4-team league with:

- all players having identical ratings
- neutral ballparks.
- all pitchers in the league had Fastballs, Sliders, and Curveballs rated at 140/200 ... so pretty good.
- two teams I added a fourth pitch Changeup = 20/200 ... so pretty bad

In other words, the only difference in these teams was that two teams had every pitcher with a crappy side-car changeup. I then ran a season and compiled the results. Here's the data:

ERA: No Change = 6.26, Bad Change = 5.82
K/9: No Change = 6.97, Bad Change = 7.61
BB/9: No Change = 3.78, Bad Change = 3.48
HR/9: No Change = 1.28, Bad Change = 1.28

Bottom line, this data says that a crappy sidecar change-up makes a pitcher better. To be honest, I'd be shocked if I found a different result, but it's nice to see.

Last edited by RonCo; 02-03-2019 at 10:46 PM.
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