Ross County earned a crucial 2-1 home win over Kilmarnock on Saturday to move out of the bottom two in the Scottish Premiership.
Killie now occupy the relegation play-off place after going down to goals from Filip Kiss and Richie Brittain (penalty) before Kris Boyd grabbed a late consolation at the Global Energy Stadium.
Dundee United moved to within four points of third-placed Motherwell with a 5-1 victory over the Steelmen at Tannadice. Nadir Ciftci scored twice, with Stuart Armstrong, Ryan Dow and Brian Graham also on target. Lionel Ainsworth got one back late on for the visitors.
Aberdeen are four points clear in second place after a 1-1 draw against St Johnstone at Pittodrie. Stevie May gave Saints an early lead but Adam Rooney equalised before the break.