
Winning rider Michael Walker was happy with the colt and the new track.
"The track felt beautiful … it's brilliant," Walker told Sky Racing.
"I just feel it was spongey, like they were bouncing off it.
"Dubious is a top-class colt and he's going to get better and better."
Dubious clocked 57.34secs on a good surface - similar to what he would have been expected to run on the old track at its best.

A $350,000 Magic Millions purchase for Aquis Farms /Ciaron Maher Bloodstock P/L from the Kitchwin Hills draft, Dubious runs for an all women syndicate headed by Aquis Farm's Mrs Fung and runs in the Aquis colours.
He is the first foal of Suspicieuse (Fr), a stakes-placed half-sister by Elusive City to Group III winner Sediciosa. She has no yearling for the sales this year, but produced a Foxwedge colt in September and is now in foal to Russian Revolution.
Aquis partnered with a number of trainers to purchase yearlings at the Magic Millions in 2018 with Dubious the best of these youngsters to race so far.
Aquis will also be in selling mode at the Gold Coast in 2019 with a quality draft of 18 yearlings, click here to see the draft with images.