Queenslander Black Cash has made amends for his defeat at his first Melbourne start by winning the greys' race at Flemington.

Sent out as favourite at Moonee Valley on October 25, Black Cash finished fourth and was later found to have the thumps, a spasmodic contraction of the diaphragm sometimes brought on by stress.

Punters shied away from Black Cash in Thursday's $100,000 final of three races named after famous grey, 1992 Melbourne Cup winner Subzero.

But Black Cash ($11) showed he was over what had ailed him with a fighting victory under 60kg to beat the favourite Members Joy ($3.40) by a short head.

His trainer Kelly Doughty was thrilled with the result and said she never doubted his ability.

"He is the first horse I've brought to Melbourne and it's a great thrill to win this race," she said.

Black Cash, who is in fact mostly black but with a striking grey tail, was ridden by Damian Browne and claimed his third win from four spring starts.

There was a dampener on the celebrations when the young woman handler waiting for him to return was king hit in the mounting yard by a man believed to have been stalking her.

The man, a registered stablehand, was apprehended and faces charges from both police and racing authorities.

The woman had a black and swollen cheek but initially refused medical attention until chief steward Terry Bailey, who witnessed the incident, intervened.