Field selection policy is

First preference in race field selection is provided to horses with National Rating Points between 60 and 70 based on
dollars won from 1st January 2020. With respect of horses which have had more than five (5) starts within the period
only prizemoney won in the last five (5) starts will be considered.

This should at least partially reduce the incidence of horses being deliberately run dead to keep their NR rating below 70