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Abstract:
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This paper describes a volleyball ranking system, commonly known as the "Pablo" rankings. Pablo rankings are currently published for college level volleyball, including men's and women's volleyball at the Division 1, 2, 3 and NAIA levels. Details of the ranking system will be provided, including the underlying (probabilistic) model and the key factors included in the assessment. Simulation results are used to explore the relationship between points scored and match outcomes. It will be shown that there is a simple relationship between point probability and win probability, and that this relationship gives results that accurately mirror real results, when accounting for the quality of the schedule. Performance of the system in predicting the outcomes of future matches will also be discussed.
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