The Peter and Paul Snowden-trained Pretty Fast made it four wins in succession following a dominant performance in Saturday's Listed Bobby Clarke Mode Plate (1200m) at Doomben.
Sent north after two wins at Newcastle and a last start win at Rosehill Gardens, Pretty Fast was travelling sweetly for jockey Damian Browne and put the race to bed in a matter of strides in the straight.
The high-priced daughter of Not a Single Doubt cruised to the line a two and three-quarter length winner over another daughter of Not a Single Doubt, Winter Bride, with Dream Ahead filly Dream Kisses a neck back in third.
"She is a $600,000 horse so she will be a valuable broodmare and even more valuable with the black type," Paul Snowden told AAP.
"She won three in a row in Sydney and Newcastle before coming here and she's a lot more confident.
"She was headed early but once Damian kicked up to the lead again she was going to be hard to beat.
"There is a race for her in two weeks which is similar to this. We think 1200m is her right distance but she is a Magic Millions horse.
"The Magic Millions Guineas is 1400m but it's worth $2 million so we will have to think about it."
Owned by Sheikh Mohammed Bin Khalifa Al Maktoum, Pretty Fast was purchased by Tim Stakemire for $650,000 out of the Arrowfield draft at the 2016 Magic Millions Gold Coast Yearling sale.
That made her the top-priced yearling by her sire at that sale.
A three-quarter sister to Group II winner and Group 1 placed filly Villa Verde, Pretty Fast (pictured as a yearling ) is the first foal of the stakes-placed Ustinov mare Miss Sharapova who hails from the family of Golden Slipper winners Rory's Jester and Ha Ha as well as the outstanding Southern Speed and Go Indy Go.
Miss Sharapova has a 2yo colt by Not A Single Doubt named Newstead who was purchased at the Magic Millions by Boomer Bloodstock for $320,000, a yearling colt by Snitzel and a colt foal by Not A Single Doubt that was born on September 2.
Pretty Fast becomes the 49th stakes winner for Arrowfield Stud's Not A Single Doubt who has 16 lots catalogued for the Inglis Classic Yearling Sale and 36 heading to the Magic Millions Gold Coast Yearling Sale.