Kilmarnock upset the form guide to earn their first SPL win of the season against Dundee United.
The Terrors sat top of the table heading into this clash while the Ayrshire men had been struggling in front of goal with last season’s top scorer Pual Heffernan out with a long-term injury.
An injury to Gary Harkins was the main talking point in the first half before the match sprung to life shortly after the interval.
Barry Douglas gifted the hosts the opening goal as Rory McKenzie nipped in to score his first SPL goal for the club.
New signing Borja Perez then doubled their advantage when he fired home from the penalty spot after Gary Mackay-Steven brought down Danny Racchi.
It was 3-0 moments later when substitute Jude Winchester scored to leave United Peter Houston furious on the touchline.
Jon Daly pulled a goal back for the visitors but it was too late to mount a comeback.