Birthday boy Jason McLachlan declared the Magic Millions Guineas was ripe for picking after his filly Enquare won at Doomben on Saturday.

Responding to a clever ride from jockey Jim Byrne, Enquare ($4.80) won by three-quarters of a length from Gundy Spirit ($13) with a short neck to the favourite Missy Longstocking ($2.70) in the Group Three Vo Rogue Plate (1350m).

The Vo Rogue Plate is the major lead-up to the Magic Millions Guineas (1400m) on January 11 and Enquare's effort ensured she should start favourite.

McLachlan celebrated his 43rd birthday on Saturday with a big smile and some strong words after Enquare was ridden "upside down" but still won.

He won the Magic Millions Guineas earlier this year with Saluter and he took a line through the two horses.

"Enquare would eat Saluter. I can hardly wait for the Magic Millions where we can ride Enquare off the pace.

"She is the most underrated horse in Australia. They keep talking up the others but she beats them all the time," McLachlan said.

Byrne was also buoyed by the win and admitted he was excited about the Guineas.

"Jason has always said Enquare would be at her top on Millions day and that makes her very hard to beat in the Guineas," he said.

Gundy Spirit ran home strongly and will be suited by 1400m, according to his jockey Ryan Wiggins.

The Vo Rogue was seen as a test of whether Missy Longstocking would get further than 1200m in top company.

Jockey Damian Browne said the filly had a nice run off the pace but did not have a lot of luck in the straight.