Hibernian remain three points clear at the top of the Ladbrokes Championship after a 2-0 win over bottom club St Mirren at Easter Road.
Martin Boyle and Grant Holt scored before half-time for Neil Lennon's men, to leave Saints still looking for their first league victory.
Dundee United stay second thanks to an 82nd-minute winner from Mark Durnan in a 1-0 victory over Falkirk at Tannadice.
Mark Stewart scored in stoppage time as Raith Rovers leapfrogged Queen of the South with a 1-0 win at Stark's Park to go third in the table.
Morton are just three points outside the play-offs after beating Ayr United 2-1 at Cappielow. Kevin Nisbet gave Ayr the lead but Thomas O'Ware and Gary Oliver turned things round for Jim Duffy's men.
It finished 2-2 between Dumbarton and Dunfermline Athletic at the Cheaper Insurance Direct Stadium. Joe Thomson and Garry Fleming netted for the Sons, with Nicky Clark and Joe Cardle on target for the Pars.