Ayr United's early implosion handed Killie the newest derby bragging rights on a exceptional evening in Ayrshire.
Derek McInnes' facet solid three forward inside 16 minutes as The Sincere Males giftwrapped the factors at Somerset Park.
The victory sends Killie again high of the Championship for the primary time since December 3 - and ensured fast revenge for Ayr's 2-1 win at Rugby Park final month.
United had caught with the identical facet which thrashed Raith final week, whereas Killie made two adjustments from their win over Hamilton, with Kyle Lafferty and Chris Stokes returning.
A cracking derby ambiance welcomed each side as the sport acquired underway at a frantic tempo and it was Killie who acquired off to a 3rd minute flyer.
United's defence was badly caught out as Fraser Murray ghosted by way of the center and slipped in Rory McKenzie to ram house a low end.
And no sooner had Ayr fallen behind than the sport was unravelling for them as Killie bagged a second.
Extra terrible defending noticed a Murray nook flicked on by Kyle Lafferty on the nearpost and Oli Shaw arrived unmarked to faucet house from two yards.
And extremely, Ayr had been three down in simply 16 minutes when one other Murray nook was headed house by Jack Sanders with barely a problem in sight.
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A livid Lee Bullen had seen sufficient and hooked Mark McKenzie and James Maxwell with the sport simply 20 minutes outdated and he switched to a again three with Markus Fjortoft and Ben Dempsey had been pitched into motion.
And Fjortoft nearly pulled one again for Ayr with a drive which examined Zach Hemmings, which the keeper did effectively to tip over the bar.
However then got here a second of insanity from the Ayr sub as, solely 10 minutes after approaching the park, he noticed straight purple for hauling down Shaw when clear by way of on aim.
For United it was then a case of harm limitation however they gave themselves faint hope of a comeback earlier than the break when Kerr McInroy slammed house from the sting of the field after taking a go from Tomi Adeloye.
Bullen made a 3rd change on the interval, pulling Adeloye in favour of Jack Baird as Ayr went to a again three.
And United refused to buckle regardless of their numerical drawback as they took the sport to the guests at each alternative.
However Killie had been at all times a risk on the break and Shaw ought to have performed in Lafferty simply after the hour for what certainly would have been a killer fourth.
Ayr had been desperately looking for some sort of inspiration to get again within the contest and despatched on teenage striker Fraser Bryden rather than Jordan Houston with 1 / 4 of the sport to go.
Killie had been in a position to withdraw Lafferty following his shift with greater than 20 minutes remaining as McInnes sought to shut the sport out.
And so they noticed it out for a giant three factors as Ayr had been left to mirror on the beginning that blew their possibilities.
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