Box Draw Audit

17:21 11 December 2024
GRNSW News
An audit of NSW box draw data performed by the University of Western Australia’s Centre for Applied Statistics (CAS) has shown there is no evidence in the data to suggest that Racing and Wagering Western Australia (RWWA) box algorithm does not work as designed.

CAS was contacted by RWWA and asked to perform a statistical analysis of results from actual greyhounds races in various Australian states and territories (NSW, NT, QLD, SA, TAS and WA) in which RWWA’s box draw algorithm was used. 

The analysis was done for each state and territory separately.

Specific questions of interest were whether there was any evidence in the data that the box draw algorithm does not perform as designed when looking at: 

1. the allocation of individual greyhounds to boxes over all the races that they ran in, 

2. the allocation of the greyhound(s) of any owner to boxes over all races in which that owner had greyhound(s) running, 

3. the allocation of the greyhound(s) of any trainer to boxes over all races in which that trainer had greyhound(s) running, and 

4. the allocation of greyhounds trained by the same trainer to neighbouring boxes, if a trainer had multiple greyhounds in the same race. 

The summary conclusion from all the analyses of NSW data is that there is no evidence in the data to suggest that RWWA’s box algorithm does not work as designed when analysing the data with respect to:

·       the allocation of individual greyhounds to boxes over all the races that they ran in,
·       the allocation of the greyhound(s) of any owner to boxes over all races in which that owner had greyhound(s) running,
·       the allocation of the greyhound(s) of any trainer to boxes over all races in which that trainer had greyhound(s) running, and
·       the allocation of greyhounds trained by the same trainer to neighbouring boxes, if a trainer had two greyhounds in the same race.