The most potent go-fast in sport isn't found in a chemist's laboratory if red-hot trainer Oliver Koolman is correct. "The greatest performance-enhancer in racing is a change of luck," Koolman said at Canterbury yesterday.

What's more "it's unswabbable", Koolman added shortly after Shanghai Sally continued the Warwick Farm stable's winning ways by taking out the Book Online Handicap at the juicy odds of $10. The Kiwi's father, Anton Koolman, was, as usual, there to enjoy the thrill of victory, with the well-known bloodstock agent offering his own thoughts on the current streak of good fortune.

"It is a great game, racing," Anton Koolman said. "You don't want good luck, you don't want bad luck, you just want a fair go."

As Koolman snr put it "that's just life", while surmising: "You can fall down a sewer and can come up with a pearl necklace."

Due to the Koolmans' association with a string of owners in Hong Kong, the trainer's stable is continually pillaged, with any thoroughbred showing ability sent to the overseas gambling mecca.

But Oliver Koolman will tell you, despite having only eight horses in work, that "a bird in the hand is worth two in the bush".

A lack of thoroughbred stock usually amounts to lean times in this tough game but Koolman has won metropolitan races on the opening three days of the new racing season.

The winning run kicked off at Canterbury last Wednesday when Returnoftheking rattled home to win at double-figure odds. That victory was followed with another long-odds success by stablemate, Tolo, at Rosehill last Saturday.

Tolo had been bought as a yearling with a view to being sent to Hong Kong but Anton Koolman said "it didn't pass the criteria" with his son intent on backing-up the gelding at Randwick on Saturday.

"Tolo has done great and I think he'll go super despite going up three kilos," the trainer said.

Koolman has retained last season's champion apprentice Tim Clark for the ride on Tolo with the emerging saddle star also in fine form yesterday.."

Koolman is confident the winning feeling will continue. "At the first three meetings I've had a win each day, and I think I can do it at the next two," Koolman said. "I've got Tolo on Saturday, Double Dip and this filly [Shanghai Sally] next Wednesday at Warwick Farm."