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Abstract Details
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Activity Number:
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64
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Type:
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Topic Contributed
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Date/Time:
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Sunday, July 31, 2011 : 4:00 PM to 5:50 PM
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Sponsor:
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Section on Statistics in Sports
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| Abstract - #301231 |
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Title:
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A Curveball Index: Quantification of Breaking Balls for Pitchers
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Author(s):
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Jason Wilson*+
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Companies:
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Biola University
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Address:
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13800 Biola Ave, La Mirada, CA, 90639,
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Keywords:
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baseball ;
curveball ;
regression ;
pitchf/x ;
pitcher
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Abstract:
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In this talk we propose a linear regression model using four variables to develop a standardized rating system for curveballs. The model fit is excellent (Adj-R-sq=0.97, p=10^-16) and has an intuitive interpretation. If the model were adopted by the baseball community, it could provide a standard metric for rating curveballs in the same way that miles per hour has become the standard metric for rating fastballs. The four independent variables measured were: rise, breaking point, location, and total break. The dependent variable was an overall rating of curveball quality judged by a pitching coach. The data were collected in a professional video production studio using three NAIA pitchers.
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Authors who are presenting talks have a * after their name.
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