Golden Slipper day was a memorable one for Gai Waterhouse in 2012 and it promises to be even better this time around.

At the corresponding meeting 12 months ago, Waterhouse claimed the $3.5 million Golden Slipper with Pierro while More Joyous put the icing on the cake with back-to-back Queen Of The Turf Stakes victories.

On Saturday, Waterhouse will be represented by favourites in three of the five Group One races.

Star colt Pierro is a dominant $1.50 elect for the George Ryder Stakes (1400m) which stablemate Laser Hawk ($18) will also tackle.

In the Slipper, Waterhouse will saddle up two of the top three chances in betting - $2.40 favourite Overreach and $10 chance Sweet Idea with Whittington ($21) rounding out her team.

More Joyous will return for a third shot at the Queen Of The Turf and has a stranglehold on the market as the $1.38 favourite.

Last start Coolmore Classic runner-up Red Tracer ($8.50) is the only other mare at single figure odds and her trainer Chris Waller would be buoyant about her chances if it wasn't for the presence of the favourite.

"You could say weight-for-age will suit her but then you've got More Joyous," Waller said.

"It's going to be hard. She hasn't got the draw she had in the Coolmore. She had barrier one there and got every favour.

"We might just ride her a bit negatively and give her a chance to get some cover and finish the race off."

Red Tracer has drawn barrier 10 in the field of 11 but the rain-affected track will enhance her chances.

Rosehill was downgraded to slow on Thursday and while More Joyous handles those conditions she has failed in two runs on heavy tracks.

Red Tracer loves the mud and is undefeated on heavy ground.