Taylor Marshall has the genes to be a great jockey and the apprentice has taken the first steps at his first Saturday metropolitan meeting with two winners in quick succession.

The 21-year-old son of retired jockey John Marshall opened his Rosehill account with victory aboard Queensland Derby hope Pinstripe Lane who claimed a decisive win in the Rexel Handicap (1900m).

His second win 40 minutes later in the Ken Callander Fellowship Handicap (1200m) was a little less convincing but Oxford Poet had the momentum to beat Fare Well by a nose.

John Marshall, a multiple Group One winner who enjoyed a lengthy partnership with Bart Cummings culminating in the 1999 Melbourne Cup aboard Rogan Josh, watched proudly from the sidelines.

"He never sat on a horse until he was 18-years-old," Marshall said.

"This was his choice. He has always had a lovely seat on a horse but you have to have the desire and he was late deciding it was what he wanted to do."

Taylor Marshall, who is indentured to another former star jockey Ron Quinton, said Pinstripe Lane surprised him with his turn of foot when he produced him to make his run.

The Troy Corstens-trained three-year-old let down to beat Elusive Runner by two lengths.

"He caught me by surprise and it was a great feeling when he was so far in front and I knew I had it won," Marshall said.

His ride on Oxford Poet earned praise from trainer Kim Waugh.

"He rode him so well," she said.

"I thought he had won but I'm never confident until the photo comes up."

The rider said he knew the result was close.

"I could hear the other horse coming and just hoped I could hold on," he said.

"He is a gutsy little horse.

"I came here with a good book of rides but just hoped things would fall into place."

Corstens, who watched Pinstripe Lane's race from Flemington, said the colt would head to the traditional Queensland Derby lead-up, the Grand Prix, before taking on the Classic.