When the Patinack Farm operation fell apart, Tremec was one horse trainer John Thompson was determined to keep.

He bought the stayer at the dispersal of his former boss Nathan Tinkler's horses last year and Jamie Walter's Proven Thoroughbreds then syndicated him.

They were rewarded on Monday when Tremec claimed the Group Two Chairman's Handicap (2600m) at Randwick for a second time but it was his first win for his new owners who include Cambridge Stud's Sir Patrick Hogan.

Tremec ($9) stalked the leader Queenstown ($8) and pounced rounding the turn.

As Queenstown weakened out of proceedings, Tremec found another gear and strode to the line 1-1/4 lengths clear of Sir John Hawkwood ($5.50) with the favourite Grand Marshal ($3.50) another length third.

The Chairman's Handicap is a traditional lead-up to Saturday's Sydney Cup but Thompson said that might be too much to ask.

"We will let the dust settle but I'm thinking we may get him ready for the Brisbane Cup," Thompson said.

"He was the only horse I bought from the dispersal sale. I was quietly confident he could win this race.

"He was back on his home track and the wet certainly was in his favour."

Walter, the brother of the late trainer Guy Walter who died almost a year ago, has been a big supporter of Thompson since he was forced into being a public trainer.

"Jamie and Guy's wife Wendy gave me a lot of horses when the stable was empty," Thompson said.

"And this is the first winner I've ever had for Sir Patrick."

Walter said Hogan was keen to be involved in the son of his supersire Zabeel.

"Sir Patrick wanted to be involved and it's a thrill to have him in the horse and to win," he said.