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Episode 32: How big can this Hall get?

Shohei Ohtani revisited, baseball Hall of Fame bar lowering and how it affects who gets in, lining up optimal player development and what happens when you launch a new statistic. Available at Baseball Prospectus (


Episode 31: Changing Pitchers, Changing Players, Changing Owners

Harry and Kendall talk about the quantifying The Opener phenomenon, Bill James' comments about replacing players, trying to figure out if regular baseball fans could visibly tell the difference between top MLB talent and replacement level talent. Then cap it off with a discussion about the changes at Baseball Prospectus.


Episode 30: In the playoffs (and always) pitching and catching are important

In the playoffs (and always) pitching and catching are important Donate to the Lupus Foundation ( Required Reading The unlucky legacy of the 2018 Houston Astros ( by Sam Miller ( Joel Sherman writes about the plight of catchers (


Episode 29: Building a Baseball Team for the Playoffs and the Future

We talk about how you build a baseball team for the playoffs and the future. It’s good to talk about baseball. Enjoy the playoffs.


Episode 28: Women's Baseball World Cup and the Rise of the 100 MPH Pitcher

Harry and Kendall talk about the Women's Baseball World Cup, then look at how the number of 🔥high velocity🔥pitchers has increased over the last 10 years. They wrap up with a discussion of how bullpen usage affects lineups and how it might affect your daily fantasy league. Stolen Bases book ( by Jennifer Ring, Ph.D. ( Women's Baseball World Cup website ( Women's Baseball World Cup...


Episode 27: Bringing numbers to the booth with Jason Benetti

We visit with Jason Benetti, television play by play announcer for the Chicago White Sox. We talk with him about his start in the business, taking over for a broadcasting legend, how he integrates Steve Stone's first hand knowledge, with the plethora of statistical data he has access to. We also touch on the All Star Game and how catchers are evaluated for the Hall of Fame.


Episode 26: It seems the seam material has a material impact with Dr. Meredith Wills

Talking about the materials that make up a baseball with Dr. Meredith Wills ( We also revisit two-way players, dig into defensive metrics and why they're difficult, and are reminded that everything old is new again. How one tiny change to the baseball may have led to both the home run surge and the rise in pitcher blisters...


Episode 25: Sergio Romo is The Opener with R.J. Anderson

R.J. Anderson of CBS Sports came on to talk with us about the Rays recent usage of Sergio Romo as a starting pitcher. We talk about whether this concept will continue and if there may be other teams willing to try it out. We also talk with Anthony Rescan about his Baseball Prospectus Intern project for calculating surplus draft value. We threw in a handful of things we've learned over the last few weeks including tidbits about Kendrys Morales, Jordan Hicks, and the predictive value of...


Episode 24: Report of the Committee Studying Home Run Rates in Major League Baseball

We discuss the Report of the Committee Studying Home Run Rates in Major League Baseball released on May 24, 2018. We talk with committee chair Dr. Alan Nathan, and committee member Dr. Dan Brooks as well as radar and target tracking research engineer, Dr. Sean O'Rourke. We examine what the report is saying and what it means going forward.


Episode 23: Evaluating Baseball Statistics with Sam Miller of ESPN

Sam Miller joined us to talk about his recent article about evaluating Statcast's new Pop Time metric. Surprising exactly no one, we also talk about Shohei Ohtani, again. And take a look at Robinson Cańo's Hall of Fame candidacy. 'Pop' science: Your guide to learning a new MLB statSam MillerUsain Bolt playing baseballA big step forward in measuring commandEno SarrisCMD from Baseball ProspectusPart 1Part 2Part 3Harry Pavlidis Below is a table showing the comparative ratings of some of the...


Episode 21: Baseball is Back

Baseball is back and we're all so glad


Episode 20: Spin Rates and Designing Pitches with Jeff Long

PECOTA team projectionswinnersThe ShiftRussell A. CarletonJeff LongHome Runs Have Surged in MLB — Baseball Experts Explain WhyRob Arthur Other Links What would happen if you tried to hit a baseball pitched at 90% the speed of light?


Episode 19: Park Factors and Pitch Design

When we talk about park adjusted stats, and park factors, what does all of that mean? How do we arrive at those numbers and how do we account for changes over time? We also talk about "pitch design" and how that combines analytical data and player development. Links: The Shift: The Next Evolution in Baseball ThinkingRussell A. CarletonBasics Of Pitch Design Using RapsodoBaseball Prospectus' Park Factors by Handedness


Episode 18: Making PECOTA with Jonathan Judge and Rob McQuown

We talk with Jonathan Judge ( and Rob McQuown (, who oversee Baseball Prospectus' PECOTA projections ( to get some more insight into how the projections are made, what's new this year, and of course hip hop. Sam Miller ( asks how much we'd be willing to endure to play Major League Baseball...


Episode 17: These Are Not the Robot Umpires You're Looking For

We talk to Jeff Long (, Sean O'Rourke (, Wayne Boyle (, and Russell Carleton ( about their recent Pitching Week ( article about the Robot Strikezone and Robot Umpires ( New Power, Command, Stamina pitching metrics...


Episode 16: Inning(s) Eaters and Aces

Stolen Signs is back. Harry and Kendall talk about the slow offseason, collusion and ideas on how to change the economics of baseball. After a short break (14:05) they discuss new research by Duke University that looks into neurological and motor skills and how they translate to baseball production, a new smart baseball that can provide some pitch tracking and tease some new work by the stats team at Baseball Prospectus. To wrap up (32:00), a look into the state of pitching and try to talk...


Episode 15: Twas the Episode Before Christmas

We touch on many issues of the day as we wrap up 2017 in style. 3:10 - Marlins firesale fallout - Dan LeBatard show ( 17:05 - Bob Bowman forced out at MLBAM ( 23:38 - Shohei Ohtani ZIPS, Steamer and PECOTA projections 35:20 - The Case for Long-Form Movement (


Episode 14: Shohei Otani and Japanese Baseball with Ben Lindbergh and Kaz Yamazaki

We talk with Ben Lindbergh and Kaz Yamazaki about the NPB posting system, differences between the mounds, balls, culture of MLB and NPB and dig a little deeper into some of the myths about Japanese pitchers coming over to MLB. We also look into the current state of the sabermetric community in Japan. Effectively Wild Episode 1145: The Reigning-MVP Podcast ( Effectively Wild episode where Ben and Jeff...


Episode 13: Wins Above Replacement discussion with Sean Forman (bWAR), David Cameron (fWAR), Greg Matthews (openWAR), Rob McQuown and Jonathan Judge (WARP)

We welcome Sean Forman from Baseball Reference, David Cameron from FanGraphs, Greg Matthews from openWAR, Rob McQuown and Jonathan Judge from Baseball Prospectus to the show. With all the recent discussion about Wins Above Replacement statistics, we wanted to get people who create and maintain the statistics together to talk about how their respective stats are created and calculated. We talk about what replacement level is, positional adjustments, how to accurately portray confidence in the...


Episode 12: Making Sausage and Catching Up

Harry and Kendall look back at the World Series, discuss the Cy Young awards and the BBWAA vote has lined up with BP's pitching metrics over the past few years. Next up is a preview of some new pitching statistics that the Baseball Prospectus stats team is working on and why that's proven to be a challenge. Harry gives a look into how these statistics are imagined, designed, tested, and tweaked throughout the process.