Toorak Handicap-bound He's Our Rokkii has capped a big day at Caulfield for the Lindsay Park team and also jockey Dwayne Dunn.

He's Our Rokkii's convincing victory in Saturday's Sheen Group Handicap (1400m) brought up a winning treble at the meeting for the Lindsay Park training partnership of David and Ben Hayes and Tom Dabernig, after wins to Harlow Gold and Keen Array.

Dunn posted his own winning treble on He's Our Rokkii having been aboard Keen Array in his narrow victory in the Listed Testa Rossa Stakes while his other win came aboard the Lee and Anthony Freedman-trained filly Exocet.

He's Our Rokkii justified his $2.45 favouritism as he proved a class above his rivals in the 1400m open handicap to extend his winning streak which started with back-to-back Group Three victories in Sydney at the end of his autumn campaign.

He has now added another two wins in 1400m races to start this preparation as he builds to his main spring targets, beginning with the Group One Toorak Handicap (1600m) next month.

Dunn had He's Our Rokkii midfield on the fence and he cut the corner as others stayed away from the rail looking for better ground.

The gelding sprinted clear to win by 3-1/4 lengths.

"He's a horse really going places," Dabernig said.