The visitors, who were forced in to making three changes due to injuries, were 2-0 down inside eight minutes and crumbled at the Tottenham Hotspur Stadium.
Sean Dyche's side have now conceded 11 goals in their last three fixtures. Here's how Dan Black scored the performances.
17. leedsvderby1986.jpg
Ian Snodin in action against The Rams at Elland Road.
18. leeds2vderby1986.jpg
Goals from Keith Edwards and John Sheridan won the game for the Whites. Derby won the title that season.
19. leedsvbrighton1986.jpg
Ian Baird celebrates scoring under the Elland Road floodlights.
20. leeds1vbrighton1986.jpg
The Seagulls goalie is left rooted to the spot as John Sheridan's strike hits the back of the net. Brighton finished bottom of the table that season.