The John Salanitri trained gelding produced a strong effort to win the Benchmark 70 event over 1400 metres by three-quarters of a length, his second win from eight starts with prizemoney now topping $114,000.
Salanitri thought enough of Sheer Madness to start him in the Group I MRC Blue Diamond Stakes and stable manager Frank Salanitri said he is still learning how to race.
"He did a good job to win that after racing three-deep without cover for a bit," Salanitri said. "It wasn't Ethan's fault, it was just the way the race panned out,
"It was actually the best place to be as he's a horse that needs to keep rolling and have room to build momentum,"
Despite Sheer Madness being by a full brother to world champion sprinter Black Caviar, Salanitri believes the gelding will be better over longer distances.
"He's always shown us ability but the penny hasn't dropped yet," Salanitri said.
"He's an exciting horse, we'll probably have a go at the Caulfield Guineas but ideally I think he's a Derby horse.
"We'll give him a little time off and then look at coming back for the Guineas Prelude."
A $40,000 Inglis Premier purchase for his trainer from the Huntworth Stud draft, Sheer Madness is the second winner for Flying Spur mare Olympiad, a half-sister to stakes-winner Spanish Bay from the family of Group I winning sprinter Khaptingly.
Moshe stands at Sun Stud in Victoria this spring at a fee of $7,700.