A minor issue last week has proven a blessing in disguise for Gold Symphony who has raced to his first Group win in the Vain Stakes at Caulfield.

Saturday's race was not originally in Peter Moody's sights with Gold Symphony but when the trainer was forced to scratch the three-year-old from Flemington last Saturday he opted for a Vain Stakes start instead.

"We had him in last week and he had a little bit of a dirty scope and we withdrew him," Moody said.

"It ended up being a blessing in disguise.

"He hadn't done a lot on the track for the last couple of weeks and back to 1100 we thought it might have been a shade short."

Gold Symphony ($6.50) raced wide outside the lead with jockey Glen Boss content to be there when the early speed wasn't as quick as he expected.

The three-year-old was up for the challenge, beating Top Me Up ($9.50) by a long neck with three-quarters of a length to Star Planet ($11) third.

The well-supported favourite Demonstrate ($3.80) was held up behind horses in the straight and finished fourth.

Moody will monitor how Gold Symphony comes through Saturday's race before deciding on spring plans.

"With the preparation he's had he's probably going to be aimed more at the autumn than the spring, I would feel, but while he keeps performing we'll look at another option if he keeps pleasing us at home," Moody said.

Boss didn't rate it as a vintage Vain Stakes field but believed Gold Symphony had a good future and would extend to 1600m.

Gold Symphony was Moody's second winner on the program after Dig A Pony claimed a support race.