She will take the reins on the five-year-old for the first time in the $30,000 Gammalite Pace, 1680m, on Saturday night.

Gath replaces Kima Frenning, who has walked away from race driving to focus on training.

Cardigan trainer Clayton Tonkin announced Gath as the choice for Ride High on Thursday morning.

Gath is from Long Forest near Bacchus Marsh, where she and her husband Andy run one of the state's premier stables.

Interestingly, Andy Gath has a runner in the same race with the speedy Beach Surge.

Jason Lee takes the drive on Beach Surge, which has been driven by Kate Gath is all but two of his 30 starts.

Gath is an occasional driver for Tonkin's partner Emma Stewart.

She has teamed up with Stewart on 40 occasions this calendar year for 14 wins.

This will be only second drive on a Tonkin-trained horse, with her previous engagement being at Globe Derby Park in 2004.

Gath is one of Victoria's leading drivers.

She sits third on the Victoiriian drivers' premiership this season with 139 wins

This is the sixth season in a row she has topped 100 wins.

Ride High is unbeaten in five starts this preparation and is pursuing an 11th straight win.

He has 15 wins in 16 career starts.

Ride High last raced at Shepparton on August 15, when he rated 1:54.1

He ran a track record 1:49 at Bendigo two weeks early.