INVESTIGADORES
VAZQUEZ Federico
artículos
Título:
Parity and Predictability of Competitions
Autor/es:
ELI BEN-NAIM; FEDERICO VAZQUEZ; SIDNEY REDNER
Revista:
Journal of Quantitative Analysis in Sports
Editorial:
Berkeley Electronic Press
Referencias:
Año: 2006 vol. 2 p. 1 - 1
ISSN:
1559-0410
Resumen:
We present an extensive statistical analysis of the results of all sports competitions in five major sports leagues in England and the United States. We characterize the parity among teams by the variance in the winning fraction from season-end standings data and quantify the predictability of games by the frequency of upsets from game results data. We introduce a novel mathematical model in which the underdog team wins with a fixed upset probability. This model quantitatively relates the parity among teams with the predictability of the games, and it can be used to estimate the upset frequency from standings data.