Callaghan, now based at Cobbitty Equine Farm and the stables of leading NSW trainer Craig Cross, has four drives on the program, including Rockita in a group 3 series final.

The teenager took the Cross-trained Rockita to a narrow heat win last week over Let's Go To Brazil in 1:51:4. Callaghan has steered Rockita to three wins and a second in his four drives since she came to the Cross stables.

The mare has gate five for the return clash in the final, which also features odds-on favourite Wolf Stride out of nine.

"She is flying at the minute, so she'll be really competitive again," Callaghan said. "It's a midfield draw so hopefully she can lob handy enough and she'll be a really good chance.

"We've driven her with a sit, she's got a really good turn of foot, so I'd say that will be the go again.

"Wolf Stride has won his last seven and is going really good but a wide draw over the mile at Menangle is not always easy and he'll have to do a bit of work."

Callaghan's father, Mark, drives Master Catch ($101) for Fullerton Cove trainer Lisa McDonald in the decider.

Jack's first Saturday night city win came via Motu Gatecrasher, which takes on a class field with Callaghan aboard in race one.

"He's a place chance with his good gate speed so hopefully we can get to the fence and he'll run his usual honest race," he said.

He also has the job on Air Time in the fifth from gate two. The gelding was formerly trained by Darren Reay at Medowie and has two wins and a second since coming to Cross.

"He's going well and the good draw will help," he said. "Hopefully he can get a sit just off them and he'll be a pretty good chance."

His other drive is with Man Hands for Jason Grimson in the Ladyship Pace.

"Her form is a lot better than what the numbers read," he said. "She's been in pretty good races and not getting beaten far."

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