Leeds United have extended their lead at the top of the Championship standings after cruising past Watford 4-0 at Vicarage Road. Daniel James' eight-minute double on Tuesday (Wednesday AEDT) sent Daniel Farke's side on their way, before strikes from Manor Solomon and Joel Piroe gave them a five-point lead over Sheffield United, who have a game in hand. Frank Lampard's Coventry scored in stoppage time to earn a fifth win in six matches with a 1-0 victory over QPR. Jack Rudoni's corner was turned in by Bobby Thomas to help them bounce back from their defeat to Leeds in their previous league outing. Portsmouth edged past Cardiff 2-1 to boost their survival chances. Colby Bishop and Conor Shaughnessy put Pompey two goals up after 17 minutes at Fratton Park as the hosts made a flying start. Callum O'Dowda pulled a goal back for the visitors, but they were unable to avoid a defeat, which saw them leapfrogged by Pompey. Derby and Oxford shared the spoils in a goalless draw at Pride Park.