The daughter of Dubawi was having her third career start and the switch to fast ground bought about considerable improvement.
She was drawn on the wide outside in stall one but jockey Andrea Atzeni soon had her travelling nicely on the heels of the leaders.
She quickened up smoothly to hit the front at the furlong pole and she went on to score decisively by three-quarters of a length.
Roger said: "She is a beautifully bred filly being out of Hathrah, who was placed in the 1000 Guineas, and a half-sister to Hadaatha who was Group 1 placed for us, so it's great to get her head in front.
"The fast ground has helped her and she should be competitive in handicaps going forward."