Kerrin McEvoy has been handed a gilt-edged opportunity to win another Group One race for premier trainer Chris Waller after landing the ride on Sacred Falls in the $600,000 Epsom Handicap at Randwick on Saturday.

McEvoy might be Darley Australia's No.1 rider but he has served Waller well when called on in recent seasons, riding Danleigh and Metal Bender to Group One victories.

"Sacred Falls is a horse who needs a confident ride, someone who can cuddle him and I think Kerrin will suit him," Waller said.

Waller, who is compiling a record in Sydney feature mile races which is only bettered by Gai Waterhouse, will have three runners in the Epsom.

Sacred Falls will be joined by in-form stablemates Boban and Riva De Lago but Waller says the Doncaster Mile winner has the most going for him of the trio.

"I think we've got three good chances but Sacred Falls is clearly the better performed because he is a multiple Group One winner third-up after a spell," he said.

"He is ready to race and I think he is pretty well weighted."

In spite of Waller's early assessment, Boban is the horse bookmakers have marked as the one to beat.

The four-year-old shares favouritism at $4.60 with Toydini after two impressive wins, the latest by almost four lengths in the Bill Ritchie Handicap.

But Waller said the barrier draw would be crucial to Boban's chances because of the horse's inclination to race too keenly when left out in the open in his races.

"I think he needs to draw the inside half of the field and one to eight would be perfect," Waller said. "He doesn't need to draw one or two but as long as he gets cover early and is not exposed because he will over-race."

Sacred Falls is a $12 chance while Riva De Lago is the longest-priced runner of Waller's trio at $16.

Described by Waller as 'bombproof', Riva De Lago earned his place in the Epsom with a come-from-behind Theo Marks Quality win.

"He gets his chance to run a really strong mile with the limit weight but he needs to go to a personal best as a six-year-old which can be hard for a horse to do," Waller said.