Corey Brown will leave for an overseas holiday and international riding engagement off a winning treble at Randwick and a careless riding suspension.

Brown's wins at Saturday's meeting came on two-year-old Helaku for trainers Peter and Paul Snowden, Ombudsman for the Chris Waller stable and the Clare Cunningham-trained Just Shine.

But his ride on unplaced Bombarding in an 1100m sprint earned him a ban from July 12 to 25 for shifting in and inconveniencing another runner.

Brown, winner of the Melbourne Cup on Rekindling, is scheduled to ride for the Rest of the World in the Shergar Cup teams event next month at Ascot in England.

"I'm riding at Grafton on Wednesday for Kris Lees and then the following Monday we are going to Europe for a holiday before I ride in the Shergar Cup on the 11th of August," Brown said.

Just Shine (NZ) (Mastercraftsman) was a three-quarter length winner of the Wallaby Cup (1800m) after responding to Brown's riding in the straight.

"He really picked up when I asked him and went to the line well," Brown said.

"It couldn't have gone any better in the run. We got out at the right time and he won as he liked. He's a promising stayer."

Cunningham and her partner, jockey Jason Collett, are in Darwin for a short holiday, with her sister Sarah looking after Just Shine.

"He is a nice, improving, progressive type," she said.