PDFWAC 260-64-010
Winnings—"Winner of a certain sum."
Winnings must include all purse moneys won for placing first in any race up to post time of the race entered, and will apply to all races in any country. Winnings during the year will be determined from January 1st of the corresponding year.
Winner of a certain sum means the winner of a single race of that value unless otherwise expressed in the conditions.