Mark Selby produced a dominant performance on Wednesday to take a 8-1 lead after his round one match opening session against Kurt Maflin at the World Snooker Championship. The Leicester man recorded a Crucible high score at this year's event with a 142 total clearence in the seventh frame, started by a superb pot off the cushion. The two will return on Thursday afternoon, with the winner set to face Northern Ireland's Mark Allen.