Bjorn Baker is taking the unconventional route this weekend, boldly entering his three-year-old filly Within The Law against some of Australia’s toughest weight-for-age stars in the Group 1 King Charles III Stakes at Randwick.

Within The Law has yet to face older horses, but that will change dramatically when she lines up against the likes of Mr Brightside, Fangirl, Pride Of Jenni and defending champion Ceolwulf in Saturday’s $5 million feature.

Baker said several factors made the challenge worthwhile, including the race’s timing and her featherweight 48kg under the weight-for-age scale.

“It’s something that hasn’t been tried, in recent times anyway, a three-year-old filly up against the older horses,” Baker said.

“It works out with timing.

“She was a good second in the Flight Stakes which was a relatively slowly run race. It looks to be a truly run race on Saturday.

“Then we have the option whether we go down to Melbourne two weeks later or we back her up in the Spring Champion (Stakes).

“She is in great order and she’s very genuine. It’s a tough ask but you’ve got to be in it to win it.”

Rachel King will take the lightweight mount on Within The Law, while Josh Parr will partner stablemate Pericles, who has been a model of consistency this campaign with a Tramway Stakes (1400m) win and a third placing in the Epsom Handicap (1600m).

Baker believes Pericles is ready to peak third-up from a perfect draw in barrier five.

“I was lucky enough to get a readymade horse off Godolphin and he’s been very straightforward,” Baker said.

“He was very good in the Tramway when he won first-up and he was excellent in the Epsom Handicap when he’d had four weeks between runs.

“The two weeks now into the King Charles, he is perfectly set up.”

The pair headline a huge 16-runner Randwick team for Baker — the biggest representation of his career — as he looks to make an impact on Sydney’s biggest race day of the year.

“I’m Sydney centric and we focus on Sydney,” he said.

“A lot of what we have been doing has been built around this day.”

Asked to nominate his leading chance on the card, Baker was quick to highlight another stable star.

“I’ve got Perfumist in the Angst Stakes and she’s in great order. She often takes a while to work into form but once she is in form she holds it,” he said.

“She is probably the best of the day.”

Punters looking to back Within The Law or Pericles in the King Charles III Stakes can find top odds and promotions via Australia’s leading betting sites—the most searched destinations on Google for horse racing markets and offers.