A scintillating Queensland Oaks win by Scarlett Lady has trainer Graeme Rogerson declaring her a freak but he will not rush a decision whether to back her up in next week's Queensland Derby.Scarlett Lady gave boom New Zealand apprentice James McDonald his first win at the elite level in Australia when he booted the filly home for a 2-1/2-length win over Becerra in Saturday's 2400m feature at Eagle Farm.Fellow New Zealander Shez Sinsational was a further 1-1/4 lengths away third, just in front of

A scintillating Queensland Oaks win by Scarlett Lady has trainer Graeme Rogerson declaring her a freak but he will not rush a decision whether to back her up in next week's Queensland Derby.

Scarlett Lady gave boom New Zealand apprentice James McDonald his first win at the elite level in Australia when he booted the filly home for a 2-1/2-length win over Becerra in Saturday's 2400m feature at Eagle Farm.

Fellow New Zealander Shez Sinsational was a further 1-1/4 lengths away third, just in front of the fast-finishing Divorces.

McDonald, 19, was ice cool under pressure and was never worried when Scarlett Lady had only three runners behind her mid-race.

"It's an unbelievable feeling to win my first Group One in Australia. It's my fifth all up," McDonald said.

"It's been a long time coming as I've tried a few times before.

"She's been very good to me and I hope it continues but I was never worried in the run as I knew I was on the best filly.

"When I let her go in the straight she picked them up quickly."

Rogerson, who trained Scarlett Lady's sire Savabeel to win the 2004 Cox Plate, will discuss backing the filly up in the Queensland Derby with her owner Max Whitby on a flight back to New Zealand on Sunday.

"She's a freak and could be anything. She could go on to be something very, very special," Rogerson said.

"She just keeps getting better and better. James (McDonald) said before the race she would just win.

"I'll talk with Max (Whitby) about running her in the Derby when we fly back to New Zealand together.

"We're going back to Auckland for a big jumps race on Monday."

While Rogerson was reluctant to commit to the Group One Queensland Derby, Whitby said he favoured spelling Scarlett Lady to prepare for the Melbourne spring.

"I've always thought she was going to be a Group One winner," Rogerson said.

"I'm very happy for her sire, Savabeel, as it's his first Group One winner as well."

Rogerson's wife, Debbie who co-trains Scarlett Lady, will also have her say on whether the filly backs-up in seven days at Eagle Farm.

"I ride her most of her work and she's been up a long time but I was very confident she'd win after she worked with Shoot Out at the Gold Coast on Tuesday," she said.

"The Caulfield Cup in the spring looks very enticing to me."

Scarlett Lady's victory emulated the feat of another Kiwi, Ethereal, who had been the only filly to win the Doomben Roses-Queensland Oaks double, in 2001.

Ethereal went on to win both the Caulfield and Melbourne Cups that year.