Trainers Lance O'Sullivan and Andrew Scott have gone back-to-back, scoring their second straight victory in the Group 2 Auckland Guineas (1600m) at Ellerslie.
The combination captured last year's edition of the three-year-old feature with Dragon Leap, and today struck Guineas gold again 12 months later with Rocket Spade.
Making his first start since a close fifth behind Aegon in the Group 1 New Zealand 2000 Guineas (1600m) at Riccarton in early November, Rocket Spade raced keenly but took up a comfortable position in seventh, one off the rail.
Rocket Spade swept to the front and went clear, beating the strong-finishing Jason Belltree by three-quarters of a length.
"He's a classy animal," jockey Craig Grylls said. "We got into a pretty good spot. He just wanted to throw his head around a little bit, but he was travelling so well.