A number of Victorian raiders have been undone by Sydney’s racing demands north of the Murray, though Ciaron Maher is assured his elite colt Observer will adapt seamlessly.

The two-time Group 1 conqueror lines up for his maiden Sydney outing in this Saturday’s $1 million Rosehill Guineas (2000m).

After his Australian Guineas victory at Flemington on February 28, the son of Ghaiyyath was dispatched north to acclimatise to clockwise gallops, leaving Maher impressed with the transition.

“I wanted to get him up there early and do a couple of nice little pieces of work and he worked like a horse that has had a lot of experience up there,” Maher said from Caulfield on Tuesday morning.

“He came through his Guineas win very well. He’s travelled up, he did a nice piece of work last week that was quite impressive and this morning just cantered around on the bit.

He didn’t have to do a lot and you would think he’s only going to improve getting back up to 10 furlongs (2000m).”

Godolphin-owned Observer, who worked right-handed under James Cummings before joining Maher last year, targets becoming the pioneer Australian Guineas winner of the Rosehill Guineas.

Alongside his Victoria Derby Group 1 from Victoria Derby, he hopes to match Dulcify, Helenus, Tarzino and Riff Rocket as Rosehill Guineas victors.

Trainer Maher contemplated the Australian Cup (2000m) against elders next Saturday, but deemed the peer Group 1 at 2000m irresistible.

“He’s still got options (to take on older horses), but taking on three-year-olds at 2000 metres, it’s hard not to go there and his form this prep has been spot on,” Maher said.

“Hopefully he can add another one to his CV and add to his record.”

Barrier two was allocated to Observer, next to rival Autumn Boy, in the nine-strong Rosehill Guineas field confirmed Wednesday morning, ridden by Craig Williams.

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