Soriano has had 10 starts this preparation, six of them in group one races, one at group 2, two at group 3 and one listed stakes race.
There is nowhere to hide at that level and there are no easy kills.
That's a lot of pressure on a mare and it's magnificent that Graeme and Debbie Rogerson have been able to maximise the mare's form.
"I think she's gone to the next level," says Graeme Rogerson, and you can't argue with that.
Much of this win is owed to the rider, stable apprentice Rory Hutchings, another to find a newer, higher level this season.
The trust in Hutchings' abilities is such that the camp allowed him to dictate how he was going to ride the mare, despite the importance of the race.
"Rory said he was going to ride the rail and what a beautiful ride he came up with," said Rogerson.
Soriano's past three runs, all at group one level, have resulted in a Zabeel Classic victory, a narrow defeat by Puccini in the Thorndon Mile and Saturday's win.
Hutchings might have had a hiccup start to his career, but his development has been as quick as it's been dramatic and the level of confidence he is riding with is quite remarkable.
An example is his performance on The Diamond One in Friday's emotion-charged $70,000 White Robe Lodge In Memory Of Steve Anderton at Otago.
The Diamond One was a member of the stable of Claire and Steve Anderton, who died of head injuries suffered earlier in the week.
Hutchings was under immense pressure to win, but refused to panic when in a tight spot at the back of the bunch approaching the home turn.
The path he chose to weave through the field and win - comfortably as it turned out - required real nerve.
Soriano hasn't finished yet - there are Sydney options and the $3 million Singapore Airlines International Cup on May 17.
One of the great features of this victory is that Soriano's owner was there, making a very rare raceday appearance. Denise Howell, a longtime Rogerson confidante and office employee, picked the right day to get to the races.
Sacred Star made light of the wide barrier to leave them behind in the $200,000 NRM Sprint, earning a plane ticket to the Stradbroke in Brisbane, a race he finished an unlucky fourth in last year.
Meanwhile, Peter and Dawn Williams will take their time before deciding whether Vavasour tackles both upcoming group one classics.
The Byerley Park trainers produced the gifted filly for a comprehensive victory in Saturday's Cambridge Stud Sir Tristram Classic at Te Rapa and will firm up future plans in the coming week.
"We'll see how she is, but you can't slaughter them and if the Derby doesn't suit then she'll go for the Oaks," Dawn Williams said.
The richly-bred Vavasour is currently a $14 chance for the TV3 New Zealand Derby at Ellerslie on February 28 and a $4 favourite for the Wellfield New Zealand Oaks at Trentham a fortnight later.
