Bryce Heys will present exciting sprinter Spieth (NZ) (Thorn Park) and his little brother Travancore (NZ) (Savabeel) at Randwick on Saturday.
Spieth, who lines up in the Listed City Tattersall's Club (1100m), is having his first start since he was sent down the Flemington straight in a three-year-old open handicap in June with an eye to education.
He won despite making mistakes, flagging his future potential.
The now four-year-old's physical development has shown his transformation from colt to stallion, Heys said.
"He's always been a large horse but naturally with any horse, three to four is when they really are coming into their adult years," he said.
Spieth holds a nomination for the Gr.1 Darley Classic (1200m) on the final day of the Melbourne Cup Carnival.
Other straight-track options at Flemington include the Gr.2 Linlithgow Stakes (1200m) on Derby Day.
But Heys is reluctant to earmark a target until Spieth proves he deserves a trip to Melbourne.
"If he can't run in the first three on Saturday there's no point going south," Heys said.
And he is confident the horse will prove himself in the Lightning.
"I was desperate to run him over 1100 metres first-up and I think it's a natural step up for him," Heys said.
"It will be a tough race but it's a natural step and a step that he can take."
Spieth's half-brother Travancore is set to run in the Listed Brian Crowley Stakes.
Travancore dug deep to win a maiden at Newcastle at his second start on August 27.
"He's still a bit new and raw and I don't know if he's a top level horse but he'll be a nice horse next year," Heys said.
"He'll definitely be a Brisbane winter horse." -APP
Spieth, who lines up in the Listed City Tattersall's Club (1100m), is having his first start since he was sent down the Flemington straight in a three-year-old open handicap in June with an eye to education.
He won despite making mistakes, flagging his future potential.
The now four-year-old's physical development has shown his transformation from colt to stallion, Heys said.
"He's always been a large horse but naturally with any horse, three to four is when they really are coming into their adult years," he said.
Spieth holds a nomination for the Gr.1 Darley Classic (1200m) on the final day of the Melbourne Cup Carnival.
Other straight-track options at Flemington include the Gr.2 Linlithgow Stakes (1200m) on Derby Day.
But Heys is reluctant to earmark a target until Spieth proves he deserves a trip to Melbourne.
"If he can't run in the first three on Saturday there's no point going south," Heys said.
And he is confident the horse will prove himself in the Lightning.
"I was desperate to run him over 1100 metres first-up and I think it's a natural step up for him," Heys said.
"It will be a tough race but it's a natural step and a step that he can take."
Spieth's half-brother Travancore is set to run in the Listed Brian Crowley Stakes.
Travancore dug deep to win a maiden at Newcastle at his second start on August 27.
"He's still a bit new and raw and I don't know if he's a top level horse but he'll be a nice horse next year," Heys said.
"He'll definitely be a Brisbane winter horse." -APP