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BaseTunnel Research

Eli Ben-Porat

The place where I write up my baseball (and perhaps other) research. Please read and leave feedback, especially if I got something wrong, which, according to my wife, happens all the time!

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Substack
PricingOnly free issuesPublishesDaily
Issues39SubscribersRead basetunnel.substack.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

Do Pitchers Control Spray Angle?

I’m pausing my SMOKE research, as the data are telling me I need a more robust “Stuff” metric than I’ve been using to date. That means I need to buckle down and build the pitch quality estimator I’ve been planning to do for a long time, and...

3 months ago
4
2

Where There's SMOKE There's Fire: Sinkers

I love stuff models, but I am also frustrated by stuff models. I desperately want to know WHY a pitcher’s specific pitch is great, and at the risk of writing something that sounds highly pejorative, I find that these models often have a “tr...

4 months ago
2
6

Where There's SMOKE There's Fire

I’ve been on a mission to create a formulaic Stuff+ for all pitch types, with the goal of deepening our understanding of what makes a pitch great. I am somewhat far away from my research goals, but I’m making slow, incremental progress. Her...

5 months ago
5
0

Clayton Kershaw and The Secret To A Deceptive Gyro Slider

I’ve been trying to build a linear model for estimating slider quality, and it gave me some fantastic results… but there was one glaring issue that invalidated the entire formula: Kershaw’s slider graded out as one of the worst in baseball....

6 months ago
0
2

Authors

The writers behind this newsletter.

  • Eli Ben-Porat

    Baseball Research Enthusiast

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