Lightly raced three year-old filly Prophet’s Thumb became the 44th stakes-winner and the 24th individual stakes winner this season for the unstoppable I Am Invincible, but she needed to overcome a troubled run and lower Redzel’s track record in Saturday’s Listed Fireball Stakes to achieve it.

Raced by her breeders, Bell River Thoroughbreds and the Hongo family, the David Pfieffer-trained filly needed to get off the heels off the erratic leader Jonker before holding off the finish of Trope by a long neck.

She zoomed over the 1100 metres to clock a brilliant 1:01.67.

The win takes her overall record to three wins and a third from six starts with earnings of $154,120.

It justified the decision of her breeders to race Prophet’s Thumb after she failed to make her $150,000 reserve at the 2016 Magic Millions National Weanling Sale.

She is the first foal of the winning Reset mare Set To Skelter, a full-sister to the Listed VRC Bagot Handicap winner Module and daughter of the Listed AJC Breeders’ Classic winner Miss Helterskelter.

Set To Skelter’s yearling colt by Hinchinbrook was consigned by Phoenix Broodmare Farms to the recent Inglis Premier Sale where he was knocked down to Laurel Oak Bloodstock (FBAA) / David Pfeiffer Racing for $150,000.