Jake Noonan got the ride on I Am The General by accident and has made sure he kept it.

On Saturday the Shane Nichols-trained colt could land the young jockey the biggest win of his career in the $2 million Magic Millions Classic at the Gold Coast.

"I went to Ballarat for the reverse way Magic Millions jump-outs to trial one of Mark Riley's and when I was on my way up there, Shane Nichols said `I've got a two-year-old trialling too, can you spin him around'," Noonan said.

"My main intention was to go up and trial Mark's and hope that it would eventually get into the Magic Millions race up at the Gold Coast."

Noonan trialled both horses and was so taken by the effort of I Am The General that he chased the ride for the Ballarat Clockwise Classic.

He has kept the ride with I Am The General third on debut at Ballarat on a wet track before beating subsequent city winner Chivalry at Flemington last start.

"When he won like he did (at Flemington) I knew there would have been plenty of other boys in the rooms ringing up trying to get on him," Noonan said.

"It's a bit of a dog-eat-dog world, but that's the way it works, so I'm very thankful to Shane and the owners for keeping me on in such a big race."

I Am The General is one of two runners, along with Geromayo, striving to become the first Victorian-trained horse for 15 years to win the Magic Millions Classic.

A wide gate hasn't helped I Am The General's cause, but Noonan believes the colt's attitude and professionalism is his biggest asset heading into a high-pressure race.

"The best thing about my bloke is he's a two-year-old going on four," Noonan said.

"He just knows what he's got to do. His attitude is right for a colt. He has the right build, his fitness is probably just on song, and mentally he just knows what he's got to do. So that's got to be an advantage."

Noonan isn't the only young jockey chasing the biggest win of his career on Saturday, with Nathan Berry on favourite Unencumbered.

Berry scored the first Group wins of his career last spring and is set to take up a four-month contract in Singapore in March.

Berry's twin brother Tommy has won the Magic Millions twice and it was his first win on Karuta Queen three years ago that launched his career.

Tommy Berry will ride the Gai Waterhouse-trained Echo Gal.