Glyn Schofield says everything he has done in an international career as a jockey pales in comparison to watching his son Chad win the Cox Plate.

An excited Schofield led the cheering in the Rosehill jockeys' room on Saturday as 19-year-old Chad steered three-year-old Shamus Award to an all-the-way win in Australia's weight-for-age championship at Moonee Valley.

"This is the best moment of my life," Schofield said.

"It is unbelievable.

"We spoke this morning and he had a plan and he rode it exactly as he said.

"What a ride.

"He had three different horses coming at him and putting pressure on him and he kept his cool.

"I am so proud of him and I want to thank Danny O'Brien for having the faith to put this kid on.

"I'm having a beer and then I'm going straight to the airport to get on a plane to Melbourne to celebrate."

Just for the record, the elder Schofield rode a treble at Rosehill, something he had forgotten about by 5.45pm on Saturday.

Glyn Schofield could well be opposed to his son during Melbourne Cup week, but for now it's all about his boy.