SEAM: Synthetic Estimated Average Matchup

The SEAM (synthetic estimated average matchup) application allows users to visualize synthetic spray chart distributions (batted-ball distributions) for any MLB batter-pitcher matchup that has occurred or could have occurred¹ in the last four years.

Information

• SEAM 2.0 Shiny Application [ Source @ GitHub ]
• SEAM 1.0 Article Preprint PDF
• SEAM 1.0 Fangraphs Article

Authors

• Julia Wapner
  • Undergrad Student, Department of Statistics @ Illinois
  • Former Analyst, Illini Baseball
• David Dalpiaz
  • Assistant Teaching Professor, Department of Statistics @ Illinois
• Daniel J. Eck
  • Assistant Professor, Department of Statistics @ Illinois

Acknowledgments

This work is supported by:

• ATLAS Infrastructure

This work was improved by helpful comments and feedback from: Alan Nathan, John Marden, James Balamuta, Dave Zhao

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1. As of SEAM 2.0, in addition to possible matchups that have not occurred, impossible matchups such as Shohei Ohtani (pitcher) versus Shohei Ohtani (batter) are estimable.↩︎