The son of Pivotal, owned by Cheveley Park Stud, was given a strong ride by Jack Mitchell and got up close home to win by half a length.
He missed a beat at the start so Jack kicked him into the bridle to get a position in the midfield. He travelled strongly in the first-time visor and picked up well when asked on rounding the bend.
He took some time to get on top but hit full stride inside the final furlong and went on to score decisively.
Roger said: "It's great to get to 100 winners in a year for the first time. Many thanks to all the team at home for all their hardwork.
"Certificate has not been straightforward but he has talent and Jack has done a good job getting his head in front."