A filly who wasn't born when Scott Singleton bought her could produce his first stakes win.

When the Hawkesbury trainer found broodmare Accretion at a Patinack Farm dispersal sale she was in foal with Alluvion.

The filly is the first of Accretion's progeny to race and will have her fourth start in Saturday's Group Two Silver Shadow Stakes (1200m) at Randwick.

Alluvion was entered to run at Canterbury on Wednesday but an unfavourable barrier draw convinced Singleton to head to the stronger race.

"She can gallop, but she just needs to draw a barrier to put herself a bit handier," Singleton said.

In Alluvion's maiden win on her home track on July 24 she jumped from barrier three and took up a forward position on the rail.

Singleton believes Alluvion has talent and raced the filly in the Listed Gimcrack Stakes and the Group Two Sweet Embrace Stakes at her first two starts.

He decided to put her in stakes company again with options limited.

"I hadn't planned to throw her in the deep end but it's just a bit tricky at this time of year," Singleton said.

"You've almost got to weigh up whether it's easier to take on older horses at the provincials and midweeks or throw them in something against their own age that's a bit richer."

The Silver Shadow is $135,000 richer than the Canterbury race Alluvion will bypass.

The filly, who Singleton races with long-time client David Lopez and his sons, will earn black type with a first-four finish.

"She'll have a future but she probably needs everything to go her way Saturday," Singleton said.

"I dare say she'll beat more home than beat her home."