Luke Ayling scored against his former team, while Leeds scored a gritty 1-0 win against Bristol City to earn three points in the championship’s automatic promotion points.
The defender ran away early but, despite dominating the match, the hosts were unable to add their feedback.
Leeds would be supported by West Brom leaders who dropped points earlier in the day.
The Baggies were held by Nottingham Forest – and Marcelo Bielsa’s team victory narrowed the gap between the pair to four points, with Leeds three ahead of Fulham third.
Leeds made an electric start and skipper Liam Cooper nodded from a corner after only two minutes.
Helder Costa has seen an almost post-stop effort well stopped by Dan Bentley.
Bristol City sometimes struggled to live with Leeds, but their good construction game models were without any end product – a familiar theme for Leeds this season.
The opener came in the 15th minute and came after a crazy race in the garage.
Leeds have been dismissed on several occasions by Bristol City’s excellent defense, but his stamina was finally broken when the ball fell gently on Ayling.
Despite being surrounded by a mass of City defenders, Ayling blew the ball over Bentley.
Leeds thought he had doubled the lead only a couple of minutes later, when Patrick Bamford stepped forward after a shot had bounced gently after hitting the crossbar.
Unfortunately, the flag was raised immediately because Bamford was offside.
Undaunted, Bamford then threw a shot on goal after a superb check and rotation.
The city started brilliantly after the restart and appealed for a penalty after Ayling blocked a shot in the area.
Referee Tim Robinson was not interested despite the vocal appeals of the city chief Lee Johnson and his coaching staff.
Jack Harrison was attracting attention in particular and whipped into a dangerous center that had just escaped the raging coast.
The odds were multiplying and quickly for the hosts who went in the last quarter of the game and when Costa put him on a plate for Bamford he seemed destined to make 2-0.
Somehow, however, he saw his shot from a few meters kept out of the agile Bentley.
A minute later Bentley made an even less credible save.
Costa clung to a long pass and rounded Bentley just so that the city goalkeeper could somehow put out his hand and deflect it into a corner.
Leeds was dominating the game and the odds kept coming and going for whites.
Impressive Harrison, who has been a threat down his left flank all afternoon, thought he was the one to close the second goal permanently, but his speculative effort returned from the crossbar.
Substitute Jean-Kevin Augustin, with almost the last free kick, made a shot just outside but the vulgarity of the hosts remained unpunished while they resisted.