Heart of Midlothian 1-2 Kilmarnock
- Published
Kilmarnock recorded their first win under manager Steve Clarke as Adam Frizzell's late strike consigned Hearts to a third consecutive defeat.
Visiting goalkeeper Jamie MacDonald touched an Isma drive on to the outside of the post after only five minutes.
But Hearts fell out the game and Kris Boyd broke clear to fire past keeper Jon McLaughlin on the half-hour mark.
Isma hit the post again then looked to have salvaged a point with a fine curling drive until Frizzell pounced.
Hearts end their rental of Murrayfield Stadium with one win, one draw and two defeats and head back to the redeveloped Tynecastle with the boos of home fans ringing in their ears.
It was the first time Kilmarnock had found the net in three meetings with Hearts and their win ends a run of four games without a win over the Edinburgh side.
Clarke had led the Ayrshire outfit - now unbeaten in their last five games away from Rugby Park - to draws with Celtic and Rangers before a midweek defeat by Hibernian since succeeding Lee McCulloch.
And his first three points lift Kilmarnock above Partick Thistle into third bottom spot in the Scottish Premiership, only four points behind sixth-placed Hearts.
Hearts fans were on their feet in the fifth minute to pay homage to their former midfielder, Stefano Salvatori, who died in midweek.
During the appreciation, their side came close to opening the scoring when Isma forced in a shot that MacDonald did well to tip on to the post.
Kilmarnock slowly found their way into the game and midfielder Alan Power was instrumental in the visitors taking the lead.
After his long ball through to Boyd, the veteran striker was clinical with his finish to give Killie the lead.
Within two minutes of the second half, they almost doubled their advantage when Greg Taylor pulled his shot wide from 12 yards.
Hearts were beginning to show more urgency and MacDonald had to be quick off his line as Isma raced through on goal.
Isma looked the most likely player to score if Hearts were to get back in the game and, when he was denied for the second time by the woodwork, Kyle Lafferty could not not capitalise on the rebound.
With 15 minutes left, Hearts drew level when Isma collected the ball on the edge of the box and curled a brilliant right-foot shot into the top corner.
The Portuguese was denied again when MacDonald pulled off another wonderful save from close range.
Just when it looked as if the points would be shared, substitute Frizzell turned swiftly inside the penalty box before firing home to send the visiting fans inside the crowd of 16,347 into raptures of delight.