The defending Cup winner Almandin, another Lloyd Williams-owned entry Johannes Vermeer, the Darren Weir-trained Humidor and the British galloper Marmelo are the only horses at $10 and under.
There will be 11 overseas-trained horses in the field this year, equalling the record from 2011 and 2015.
Six of the top 10 chances in the betting were internationals the day after the barrier draw, but the top two were the Robert Hickmott-trained Almandin and Humidor.
