The son of Teofilo, owned by Saleh Al Homaizi and Imad Al Sagar, was suited by the galloping track and return to fast ground.
He travelled strongly throughout under Graham Lee and surged clear up the straight to win by five lengths.
Roger said: "Igider had been off the track a long time when disappointing first time out this season and that was much more like it today.
"Hopefully he will continue to improve. He is a strong galloper and looks as though he may stay further in time."