Trainer Guy Walter will be a happy man if the Frank Packer Plate tradition stands up again.Walter will run this year's Frank Packer Plate runner-up Orca in Saturday's Group Three Doomben Classic (1615m) ahead of his main mission in next month's Group One Queensland Derby (2400m) at Eagle Farm.The Group Three Frank Packer Plate (2000m) has long been known as a race whose winners have gone on to greater things.Some of its big-name winners include Might And Power, Freemason and Juggler who all won

Trainer Guy Walter will be a happy man if the Frank Packer Plate tradition stands up again.

Walter will run this year's Frank Packer Plate runner-up Orca in Saturday's Group Three Doomben Classic (1615m) ahead of his main mission in next month's Group One Queensland Derby (2400m) at Eagle Farm.

The Group Three Frank Packer Plate (2000m) has long been known as a race whose winners have gone on to greater things.

Some of its big-name winners include Might And Power, Freemason and Juggler who all won later in their careers at the top level while many placegetters including Moatize, who ran second in 2008, and Eremein, who was third in 2005, also went on to bigger victories.

Orca was rated unlucky not to beat his stablemate Yallingup in the Frank Packer Plate last start, a week after scoring a narrow victory in the Listed Carbine Club Stakes (1600m) at Randwick.

"The Frank Packer Plate has often produced some good horses over the years and it will be interesting to see what happens this time," Walter said.

"Orca was held up slightly and was very unlucky not to win the Packer Plate and I thought his win in the Carbine Club was very good."

Walter wants to win a Derby with Orca but immaturity led to the son of Carnegie failing in the Group One Victoria Derby (2500m) at Flemington in November while injury forced him out of the Group One AJC Australian Derby (2400m) at Randwick last month.

Orca missed the AJC Australian Derby after he slipped on the road and grazed a knee.

Instead of Orca running in the Group One feature, Walter had to be content with the three-year-old winning the Carbine Club Stakes on the same day.

"Unfortunately he had a setback and had to miss the Guineas and Derby but I think that could prove a blessing in disguise for Brisbane," he said.

"It was a simple accident. He was walking on the road when he slipped and skinned his knee.

"We had to treat him with antibiotics to prevent a possible infection."

Walter is pleased with the way Orca has progressed since arriving in Brisbane and expects the colt to perform strongly in the Doomben Classic.

"He's hopefully a horse who will get better with age but he'll run well and be competitive tomorrow," Walter said.

"He's the type of horse who races best on the fresh side but he might need some luck as it's only a mile around Doomben.

"He's only slightly built but his biggest asset is his temperament."

Orca will have his final run before the Queensland Derby in the Group Three Rough Habit Plate (2020m) at Doomben on May 23.