Judd Trump made a breezy start to the middle Saturday of the Betfred.com World Championship as he clinched a quarter-final place.

The 21-year-old from Bristol had done the legwork against Martin Gould in the opening two sessions, in which he built an 11-5 lead.

Although Gould narrowed that gap, the 29-year-old Pinner potter was soon one frame away from defeat.

Trump fired in a break of 69 to go to 12-6, and 53 in the next frame made sure of a 13-6 victory.