“He was only just beaten first-up and then went close to winning last week.”
Doc Harvey also won at Marburg in late July as well.
Doc Harvey has been in O'Shea’s care since March of last year after previously racing in NSW and Victoria.
The conditioner has held a trainer's licence for much of his life.
“It’s been a lifetime passion, but I’m just a hobby horseman,” O'Shea said.
“It is enough to keep me busy, I wouldn’t mind one more in work to race.”
Ben Battle’s Highway Writer and Mister Diamond – who was trained and driven by Trent Moffat – were the other two heat winners on Tuesday ahead of the upcoming feature decider.
O'Shea also has a rising two-year-old that has just been broken in that he is looking forward to getting to the races.
“She is a nice little filly, by Mr. Feelgood that I bred,” he said.
“She is out of Classytoff - a mare that I had – who is an Art Major mare out of a good New Zealand family, so I thought she would be worth breeding with.”