Things could have been different had Christian Benteke taken any one of three chances presented to him after coming on as a second-half substitute.
Here are the major talking points from the action at Elland Road.
Fitness levels superb for Whites
With the style that Leeds play and the demands Marcelo Bielsa puts on his team, they often can fade late in seasons or look tired in games. Not the case here.
The Whites were full of energy and created chances throughout the match, particularly in the opening stages of the contest, fully stamping their authority on proceedings on the hour mark.
Despite Palace having a flurry of chances, the hosts surged in the later stages with Raphinha, who played every second, converting from the penalty spot late on.
Eagles left frustrated over non-penalty call
The call highlighted the lack of a consistent threat within the Eagles attack as Wilfred Zaha had minimal impact and while Ayew and Odsonne Edouard showed some promise, it was far from what was required.
It came as a bit of irony that the critical moment of the match came when Guehi, who had a poor game, was correctly called for a handball by VAR in stoppage-time.
Vieira instilling steady play in Palace
While the Londoners didn't offer much that stood out, they don't often sit back inviting teams to come at them nor do they seize possession, trying to dominate the game by having lots of the ball.
What they do show is a consistent intensity, a trait instilled in them by manager Patrick Vieira. He also made what could have been a game-changing substitution had Benteke not spurned a trio of chances.
As the season progresses, it's clear that the former NYCFC man is making an impact on the Selhurst Park outfit and is the right man for the job.