Mick Price revealed his once "fat and lazy'' colt Mighty Boss became a longshot Group I Caulfield Guineas winner after being sent over the jumps to sharpen his attitude.
The Caulfield trainer produced one of the biggest upsets in Guineas history when his first emergency sneaked into the field and stunned punters by winning at $101.
Runner-up Kementari ($5.50) loomed as the winner in the 1600m contest but Michael Walker produced a peach of a ride on the outsider to storm up on the fence to win by a neck and leave punters gobsmacked.
Price, who paid $17,000 for a 10 percent share in the colt, told how Mighty Boss was an overweight and lazy colt until a regime over the jumps helped his fitness and sharpened his attitude.
"He has been a fatty and lazy horse and a real laidback type who has been a bit wound down," Price said.
"He has had a 'who cares' kind of attitude.
"The girl who rides him at work suggested something different, she suggested we pop him over the little rubber jumps and hurdle him.
"He went over three jumps yesterday morning.
"It has taken time to tune him up and to be fair he was entitled to be a longshot because there was a lot better form in the market than him.
"But we persevered and persevered and he peaked on the day."
Catchy, who was trying to become the first filly since Surround in 1976 to win the Caulfield Guineas, ran on for third but was never a winning threat and finished more than a length from Mighty Boss.
Mighty Boss won a Sale 1200m maiden in July but had little in his form to recommend him as a serious Guineas threat.
"My horses just don't go out at these sorts of odds but I'm not a punter," Price said.
"I don't punt with money but I punt with everything else.
"I wouldn't have $20 on a horse but I would buy a $17,000 share in a horse like this."
Price now plans to spell Mighty Boss and set him for the Group I Australian Guineas (1600m) at Flemington next March.
