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Robbie Muirhead scored his first goals for Partick Thistle

Partick Thistle leapfrogged Kilmarnock in the Scottish Premiership with a scintillating display.

Two early goals from striker Kris Doolan put the visitors in control at Rugby Park.

Josh Magennis pulled one back but Gary Fraser restored the Jags' two-goal advantage.

Robbie Muirhead scored twice - his first a sumptuous strike - either side of a Mark Connolly consolation for Kilmarnock.

Thistle move up to ninth, with Killie slipping to 10th while remaining eight points clear of bottom side Dundee United.

Alan Archibald's side got off to the perfect start as Steven Lawless threaded a pass through to Doolan, who kept his cool - despite calls for offside from the Kilmarnock defenders - to calmly finish at the near post.

That was Doolan's third goal of the season against Kilmarnock, and he soon had his fourth.

Doolan (centre) has scored four of his five goals this season against Kilmarnock

Fraser's free-kick was high into the box and, at the back post from a very tight angle, Doolan guided a header into the car corner of the net.

Gary Locke's men responded immediately with a shot from Greg Kiltie just wide.

But it would be Magennis who would give Kilmarnock a lifeline. After four games without a goal the Northern Ireland international notched his eighth of the season with a well-taken volley from inside the box.

Early in the second half, Thistle restored their two-goal advantage as Kilmarnock failed to deal with a cross and Fraser fired in from close range.

Former Kilmarnock starlet Robbie Muirhead notched the the pick of the goals. He picked up the ball 30 yards out and sent a thunderbolt into the top corner.

Connolly's header from Steven Smith's free-kick temporarily reduced Kilmarnock's deficit.

But Muirhead was about to torment his former employers again, netting from inside the box following another Lawless pass.

The Kilmarnock defence that claimed a 0-0 draw at Celtic a week ago had seemingly disappeared as Liam Lindsay almost made it 6-2 to Partick Thistle from a corner, his header coming back off the post.