Aberdeen and Kilmarnock were evenly matched in the first half, but the home side took control after the break and ran out easy winners in the end. The opening goal came in the 17th minute when Killie won a free kick 25 yards out. Langfield could only parry the curling effort from Eremenko allowing Sammon to knock in the loose ball. Five minutes after the break Sammon broke and delivered a pass to Eremenko who was brought down as he rounded Langfield. Hamill made no mistake from the spot and the Dons never looked like getting back into the game as they suffered their sixth straight defeat.
Aberdeen kicked off on a bitterly cold afternoon at Rugby Park with a foreign official in charge for the first time in a domestic match. The first half-chance fell to Aluko in the 4th minute as he picked up a loose ball, but he couldn't get past Hamill as he headed towards goal. A minute later Maguire was taken out of the play by Gordon, who was lucky to escape a caution. Aluko swung the ball into the area, but it was well defended by the home side. At the other end Ifil conceded a free kick in the 7th minute, but a combination of Hartley and Folly cleared the danger.
The atmosphere was muted at this stage as the crowd looked for some action to warm them up. A folly pass in the 9th minute caused a few flutters before the Kilmarnock defence scrambled the ball clear. The match was riddled with mistakes from both sides in the early stages, but Aberdeen won the first corner in the 13th minute. Bell easily held a weak Vernon header then Ifil and Diamond had to look sharp in the 17th minute as they cleared with Kilmarnock looking to threat. Ifil then made a challenge on Sammon in a dangerous position that the official penalised.
The decision was costly as the home side went ahead when Langfield could only parry the free kick from Eremenko allowing Sammon to knock in the loose ball. Aberdeen tried to hit back as Aluko fed a ball for Vernon, but the keeper was quickly off his line to clear. An early ball from Maguire in the 24th minute almost opened up the Killie defence, but Vernon was unable to get on the end of it. Kilmarnock had taken confidence from the opening goal, but Aberdeen won a second corner in the 28th minute and immediately won another.
The second effort was half cleared, but when the ball was returned it found Diamond in an offside position. Eremenko attempted an audacious lob in the 32nd minute, but the ball went over Langfield and the cross bar. Aluko then showed quick feet to win a free kick, but once again the home defence were on top. A minute later a snapshot from Hartley looked to be on target before it took a deflection off of Aluko. A minute later a shot from Considine went over as Aberdeen tried to get a foothold back in the game.
Considine collected the first yellow card of the match in the 37th minute then Maguire won another corner as Aberdeen increased the pressure. Vernon and Clark then combined well in the 41st minute as the game moved from end to end. Kilmarnock won their first corner of the match in injury time, but the Aberdeen defence stood firm and at this stage were still very much in the match. Then a totally unusual event for a Scottish football ground was witnessed as the match officials were applauded off the park.
Hallur Hansson made his Dons debut when he replaced Clark at the interval, but it was the home side who threatened first with an early free kick. That threat came to nothing and Aberdeen were on the attack in the 48th minute when Jack played a great ball into the danger area. Unfortunately the ball was cleared from the foot of Vernon for the first corner of the second half. The danger was cleared and Kilmarnock broke up field and won a penalty that was hotly disputed. Sammon broke and delivered a pass to Eremenko who was adjudged to have been brought down as he rounded Langfield.
The referee had no hesitation, although the Aberdeen players appeared to claim simulation. Langfield earned a yellow and Hamill made no mistake from the spot. A Hartley free kick was punched clear by Bell in the 57th minute and a minute later Maguire swung in a decent cross that was again intercepted before reaching Vernon. Five minutes later Aluko and Vernon combined well, but there was no end product. Seconds later Langfield comfortably watched an effort from Gordon sail over.
Langfield was then forced into a great save from Sammon with Taouil screaming for the cut back. Aberdeen were looking exposed now as they pushed forward in search of a goal. They were ripped apart again in the 66th minute, but Kelly failed to finish a fine passing move. After soaking up some pressure Aberdeen went close in the 71st minute when a Vernon header was deflected wide. From the resultant corner the big striker forced a fairly easy save from Bell.
Taouil went close in the 76th minute when his shot was deflected wide by Diamond and from the resultant corner the ball was half cleared then delivered back into the area for Sammon. He went one-on-one with Langfield and forced a fine save from the keeper. Hansson then conceded a free kick 35 yards from goal, but Folly was on hand to clear the delivery. Langfield spilled the ball in the 81st minute, but recovered quickly. Velicka then replaced Folly and with five minutes remaining Aberdeen won another corner, but again they failed to create a chance. There was no further scoring as the Dons stumbled to their sixth successive defeat.