Chris Waller's century of Sydney winners for the season will have to wait until at least Saturday after the leading trainer was left stranded on 99 after a double at Warwick Farm on Wednesday.Waller prepared Savannah River and Merchandise to win at the meeting, taking him to within one of joining an elite list of Sydney trainers to have prepared 100 city winners in Sydney in a single season.Only Tommy Smith, Brian Mayfield-Smith, Gai Waterhouse and John Hawkes have achieved the feat.The late TJ

Chris Waller's century of Sydney winners for the season will have to wait until at least Saturday after the leading trainer was left stranded on 99 after a double at Warwick Farm on Wednesday.

Waller prepared Savannah River and Merchandise to win at the meeting, taking him to within one of joining an elite list of Sydney trainers to have prepared 100 city winners in Sydney in a single season.

Only Tommy Smith, Brian Mayfield-Smith, Gai Waterhouse and John Hawkes have achieved the feat.

The late TJ Smith did so 20 times, Mayfield-Smith reached a century in 1987-88 while Waterhouse has done so on eight occasions and Hawkes seven.

"I was a self-confessed good cricketer but I never made 100," Waller said.

"Never even looked like getting near it. I was never even stranded in the nervous nineties.

"If we don't do it on Saturday then hopefully we'll do it next Wednesday."

Waller's double took him another win clear of Peter Snowden at the head of the premiership after the Snowden-trained Pillory landed a huge betting plunge to win the Casula Handicap (1200m) on the same program.

Two-year-old filly Pillory was crunched from $11 in to $4.60 on track before sweeping down the outside to win by 1-1/2 lengths.

"She goes all right," Snowden said of the filly.

"She worked very well here on Saturday morning so I would have been disappointed if she didn't do something today."

Waller leads Snowden by 17-1/2 in the premiership.

Waller's two winners were piloted by talented apprentice Jason Collett who also won on the Gai Waterhouse-trained Essence Of Success.

It was Collett's second city treble since arriving from New Zealand on loan to Waller two months ago.

"If we can keep him in Sydney he could win the apprentices' title next season," Waller said after the Collett brought up his treble aboard Merchandise in the Ashcroft Handicap (2400m).

While Collett was the punters' pal with his victories on Savannah River($2.90), Essence Of Success ($2.05) and Merchandise ($2.50), Brazilian jockey Diego Lima caused a major upset in the Cartwright Handicap (1200m) when he guided the John McNair-trained outsider River Jordan ($91) to a 1-1/4-length victory.

It was the first city win in Australia for 28-year-old Lima and his second win overall since he moved here about a year ago.

He partnered Hay List's half-brother Sound Of The Ocean to a debut win at Gosford earlier this month.