Coco Sun is aiming to become the first filly since Qafila to win the South Australian Derby.

WA trainer chasing Group 1 win with daughter of mare he remembers well.

South Australian Derby contender Detonator Jack will attempt to win the race at his fourth race start.

Not A Single Doubt filly Qafila scored a breakthrough Group One success when she thumped the males winning the South Australian Derby (2500m) at Morphettville on Saturday.

Showing her Spring was no fluke, Qafila rattled home to take the 2019 Angus Armanasco Stakes at Caulfield on Saturday.