What you are really asking is how do group 1 winners over here get into Group one races over there? The answer to that is obvious I would say.
The next question is how do group 1 winners over here get M0 or M1 assessments over there? That is a question I don't have an answer to that satisfys my own curiosity.
The next question is why are Australian over there starting to buy our better horses like the aforementioned Raukapuka Ruler along with Sicario and yes even Tiger Tara and Chicago Bull to name but a few? It's because they will go over there to such a low rating that they can pay back in truckloads for their large purchase price. Everyone wins. Kiwis get bigger money for their best horses, Aussies buy these good horses to race for good money against lesser lights due to their assessment paying back their outlay with major interest.
The only losers are the poor Aussies who have to compete against these and the Australian administrators who are slow to react to what their handicapping system is doing to the industry.
Just as the foal numbers in Australia are down season on season so too are our foal numbers. It's already at the stage of you taking our best knowing you can make up your outlay on a good NZ horse. As Aussie's breeding barn we will soon run out of horses. What then? IMO the answer lies in your handicapping system.
Back to the original point. Raukupuka Ruler (20-6-2) Gp1(1-0-0) is well qualified on race performance to compete in the Hunter Cup. WE are having to allow any race winners into the NZ Cup when previously you needed 10 Handicap wins just to nominate. Why the change?
Our intermediate graders have been exported. And now the market wants our best and will pay anything for them knowing the outlay will return a handsome profit all things considered.