Saturday's TJ Smith Stakes (1200m) at Royal Randwick was dubbed "the race to crown Australia's best sprinter", and it was Horsham part-owned Nature Strip who blew away the competition.

The five-year-old was at the peak of its powers, convincingly beating a star-studded field including nine group 1 winners to win the $1.25 million race.

The horse has now won more than $5 million in prizemoney, but for his five Horsham part-owners - Frank Giampaolo, Craig Bennett, Geoffrey Dumesny, Craig Garland and David McCluskey - the thrill of supporting the star racehorse means more than the money.

"We are just absolutely beside ourselves," Mr Garland told the Mail-Times after the race on Saturday.

"Some are saying he's the fastest horse in the world - it's quite mind-blowing to be a part of.

"It's just hard to believe."

Nature Strip was a heavy favourite all week for the TJ Smith, but drifted with bookies prior to the jump to as much as $4.

It was movement that proved to be perplexing, as the star five-year-old led by some distance heading down the final straight and never looked back.

"He's really shut down the doubters," Mr Garland said.

"A lot of people said he had to do a lot of things, but he's just the best racehorse in Australia. It's just fantastic.

"(The syndicate) aren't allowed to be together at the moment (due to the COVID-19 pandemic) ... but when it's over, we definitely will have some celebrations.

"In the meantime, we'll just kick back and watch the replay over, and over, and over."

Fellow part-owner Frank Giampaolo said Nature Strip had continued to exceed expectations.

"We were really worried because of the three-year-olds who had less weight, we thought that might be a problem," Mr Giampaolo said.

"But he beat them easily.

"We just get such a buzz out of it - the money comes with it, but just to be involved in a horse like that is so exciting."

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