Midway through his Cox Plate run, Thomson was lured over the Tasman by legendary trainer Colin Hayes and he immediately rewarded Hayes' faith with two successive wins in the Cox Plate.
The partnership continued to flourish and Thomson went on to win three Victorian jockey premierships, becoming the first non-Victorian to claim the title.
Thomson was then lured to the United Kingdom as a 24-year-old by Robert Sangster, and as with Hayes, he immediately rewarded Sangster's faith in him.
"Having Robert Sangster as my sponsor was a massive help," he said. "My first success was at Royal Ascot on Committed in what was the Cork and Orrery Stakes, now known as the Queen's Jubilee (Gr.1, 1200m). All those things were massive door openers (in the United Kingdom)."
Thomson went on to win the Gr.1 Queen Elizabeth II Stakes (1600m) aboard Sure Blade and highlighted his ride aboard Gildoran when winning the Gr.1 Ascot Gold Cup (4000m) as one of his best.
The pair led for the majority of the extreme distance to give Gildoran back-to-back wins in the race.
"He was an interesting horse because he was a really big heavy horse, but he virtually needed the ground to be rock hard, which is quite unusual for English stayers," he said.
"I always rated it as one of my great rides because it's a long way to be in front. It's like leading in a Melbourne Cup-plus."
Thomson subsequently returned to Australia in 1987 where he once again experienced immediate success.
"I came back to Australia, got off the plane and won a Gr.1 Caulfield Guineas (1600m) on Marwong and I won the Caulfield Cup (Gr.1, 2400m) on Lord Reims."
Thomson said he found it hard to settle in Australia and elected to move to Asia and found Hong Kong to be an exciting place to ride.
"The most exciting place that I have ridden is undoubtedly Hong Kong."
In all, Thomson plied his trade in 24 countries, recording more than 2500 wins, 54 of those at Group One level.
- NZ Racing Desk