Sydney sprinter Redzel has landed a betting plunge in taking out a stakes race at Caulfield.

The Peter and Paul Snowden-trained galloper was supported from $8.50 to $5.50 before landing The Heath 1100 on Saturday.

Ridden by Mark Zahra, Redzel held off the $3.70 favourite Under The Louvre to score by a long neck with Santa Ana Lane ($11) three-quarters-of-a-length away third.

Peter Snowden said the stable planned the attack on Saturday's race after the gelding's win at Canterbury on July 23.

"It's a race we identified straight after his last start," Snowden said.

"The way he races takes a fair bit out of the horse and he needs to have his races spaced.

"We've got the key to him now and he keeps on winning."

Without stables in Melbourne, Snowden said Redzel would return to Sydney but could be back later in the spring.

"He won't race for about a month," Snowden said.

"There's some good sprints coming up both here and at home and he keeps raising the bar.

"A good horse almost chased him down and there's a lot of good horses down here at this time of the year."

Zahra, who had ridden Under The Louvre to previous stakes race success, knew the Group One-winning sprinter would be coming hard in the final stages.

"Late in the race he (Redzel) started walking and I was wondering where Under The Louvre was, but luckily he had enough left in the tank," Zahra said.