Darren Weir is convinced he has the right horse and the right jockey in Saturday's Sir John Monash Stakes at Caulfield, but he's equally certain he has the wrong barrier.

Weir will saddle three runners in the Listed 1100m sprint, including Rue Maple, who would have been among the favourites had she not drawn barrier 15.

The runner-up in the same race last year behind Secret Flyer, Rue Maple has won only once since, a mare's event over the same course and distance in April.

"She may have only had the one win in the last year, but she's been going around in some very good races and she's always been round about them," Weir said.

"Even in a Group One at Moonee Valley she wasn't that far from the real good horses."

Among those "real good" ones was the super Sydney mare More Joyous who finished just over two lengths in front of her in the Manikato Stakes won by Sepoy.

"Rue Maple probably isn't going as well as she was then, but she wouldn't have to be," Weir said.

The major issue for Rue Maple is the wide barrier but Weir is hopeful the in-form Brad Rawiller can overcome the awkward draw.

A double at Cranbourne on Wednesday made it 10 wins for the week for Rawiller.

"From barrier 15 he'll just have to ride her well and he seems to be doing that lately," Weir said.

Another positive for Rue Maple is the certainty of a wet track at Caulfield.

A heavy 8 on Wednesday, the track isn't expected to improve significantly before Saturday's meeting.

Weir will also saddle Royal Bender and Platelet in the Monash, with a preference given to the latter whose past two wins have both come on slow tracks.

The Monash also marks the reappearance in Australia of Green Birdie, an international Group one winner whose past five starts have been in four different countries.

A solid performer in Hong Kong for the past five seasons, Green Birdie won the Group One KrisFlyer International Sprint two years ago and has since raced in Japan and Dubai.

Now with Tony Vasil, Green Bridie will be ridden by Damien Oliver, the stable confirming he will run despite drawing barrier 17.