Re: International Triple Crowns in one schedule?
This one has the actual dates (or down to the time of the month) for all the Triple Crowns in the world:
https://www.racingbetting.com/horse-racing/triple-crown/The Australian one is
Randwick Guineas (early March)
Rosehill Guineas (late March)
Australian Derby (early April)
I'm playing an Australian schedule, so they form the achievement for the Triple Crown.