'No rider error': Sherry still sweet for Newnham and Black Magnum

Mark Newnham didn't even give a second thought to Black Magnum's first-up defeat being a result of jockey error and says his highly-rated apprentice Tom Sherry is still equipped to be a force in Sydney.

On his first day as a junior rider at metropolitan level, Sherry walked away from the races disappointed after Newnham's promising sprinter Black Magnum was severely hampered at a rails-biased Kensington meeting.

The interference almost certainly cost Black Magnum another city success, which would have capped a long range plan for the horse to provide Sherry's first winner in town.

But Newnham, the former jockey who has taken an active role in tutoring the next generation of riders, didn't dwell on the result and backed Sherry to win over other connections in coming weeks.

"When he aimed up for the run, it was going to be narrow and there wasn’t any room for error," Newnham said. "There was a bit of a shift from the outside and it shut on him. It was no rider error, it was just luck in running.

"It doesn’t always fall your way. When you’re racing on tracks that have a definite bias everyone jams up into the same lanes."

Newnham has helped Robbie Dolan win the last two Sydney apprentice titles and with Sherry has a legitimate contender in the new season, which begins at Rand