Darci Brahma mare Sierra Sue established herself as a top-flight, seven-furlong horse last spring by taking out the Sir Rupert Clarke Stakes (1400m) at Caulfield in September, and co-trainer Trent Busuttin says the mare will again target Group 1 races at her favoured trip this autumn.

"For whatever reason her record says she's a 1400-metre horse, there are two Group 1 1400-metre races coming up in the month of February," said Busuttin, who trains in partnership with Natalie Young.

"Her record shows 1400m is her optimum distance."

Sierra Sue impressed in a Cranbourne trial on Monday morning, after the best part of three months off.

"Very happy with her, it was a fairly firm track as most trials usually are at Cranbourne," Busuttin said.

"She's fantastic, nice and strong, she's come through it good.

"She'll trial up at the start of February over 1000m, and then she'll go into the Orr Stakes first-up over 1400m.

"She's a Group 1 winner and it's a logical race for her."

-Racing.com