But, Reilly is not putting all her eggs in the I Cast No Shadow basket as the horse has struggled to recapture his best form through 2023.
She also has Cantfindabettorman that she owns in the hunt.
Cantfindabettorman is currently ranked 25th overall for trainer Belinda McCarthy.
As Reilly - who is in her early 80s - puts it, if her reigning champion cannot find his peak form, she has a back-up in Cantfindabettorman.
Cantfindabettorman was successful during the recent winter carnival in Brisbane, claiming the 2023 Group 3 4YO Championship.
“I have got the old boy there – I Cast No Shadow – and the young boy – Cantfindabettorman,” she said with laugh.
I Cast No Shadow raced through the recent Queensland winter but failed to fire, with Reilly noting he battled with foot issues through the carnival.
He subsequently spelled in the Sunshine State and has resumed under the guidance of Graham.
The Palm Beach-based Reilly is eager to see if he can find his best form when ID23 commences early next month.
“He has spelled in Queensland and he has come through it with flying colours, his feet are excellent,” the owner said.
“He has enjoyed this beautiful weather we have up here.