The son of Authorized was fourth on his debut over a mile at Nottingham andd was suited by the drop back to seven furlongs today.
He travelled strongly in behind the leaders under Andrea Atzeni before going in pursuit of the leader, Stetchworth with two furlongs to run.
He got his head infront inside the final furlong and held on all out to beat the fast-finishing Zee Zeely by a nose.
Roger said: "Idder showed a great attitude and did well to win. He is a good mover and will benefit from better ground next year."