The Irish stallion was euthanised after breaking down 350 metres from the finish line.
Dozens of racehorses died at the southern California racetrack in 2019, drawing scrutiny from government officials and animal rights activists.
Racing Victoria confirmed the horse had been taken to an equine clinic after sustaining a pelvic injury.
Along with the 'nup to the cup' movement, many Australians are proving the race that stops the nation is not their cuppa tea.
Angry Protestors, gory fascinators and trending hashtags: Aussies don’t want a bar of the race that stops the nation in 2019.
Prime Minister Scott Morrison thinks that the sails are a great billboard.
This incredibly gentle grey horse is a genuine Hay-Lister.
Many are calling for 22-year-old Dylan Caboche to be banned from racing for life.
Nation, you can start again.
The horse was euthanised on Tuesday evening.