The son of Shirocco has been off the track since winning his maiden in January but he has been training nicely and the step up in trip has worked a treat.
He was given a good ride by Neil Callan, who let his mount find his feet in the early stages.
He travelled smoothly and was well positioned to make his challenge as they approached the furlong marker.
Sporting Gold hit the front with 100 yards to run and stayed on well to beat Perfect Summer by three quarters of a length.
Roger said: "I am delighted to have a winner for Alan especially as he has been so patient with this horse.
"The track, trip and ground all suited him and he has done it nicely enough."
At Newmarket, Baarez ran a hugely promising race to be second in the seven-furlong maiden while Lanansaak gained 'black type' when third in the Listed Rosemary Stakes.