Finn Harps 0 Sligo Rovers 1
In-form Sligo stretched their unbeaten run to five games as Harps slumped to a fifth straight defeat.
Rovers took a deserved lead on 23 minutes, punishing poor defending, for what proved the only goal of the game.
The marking was negligent as central defender Mauro Almeida met Fahrudin Kuduzovic's corner to head home.
Harps should have been level on 31 minutes.
Marc Brolly did well to put over a superb cross from the left, but Conor Gethins blazed over the bar.