Celtic moved three points clear in the Premiership thanks to a 1-0 victory over bottom club Ross County on Saturday.
Kris Commons got the only goal early in the second half for Ronny Deila's men at the Global Energy Stadium.
Third-placed Inverness CT enjoyed a 2-0 win over Hamilton Accies at New Douglas Park thanks to an own goal from Grant Gillespie and a Nick Ross effort.
Charlie Telfer scored twice and Jaroslaw Fojut was also on target as Dundee United defeated Motherwell 3-1 at Tannadice. Simon Ramsden claimed a consolation goal for the visitors.
Dundee came from behind to boost their top-six hopes with a 2-1 win over St Mirren in Paisley. Kenny McLean opened the scoring but Gary Irvine and Iain Davidson replied and Saints had Yoann Arquin sent off late on.
Frederic Frans scored a late equaliser as Partick Thistle drew 2-2 with Kilmarnock at Rugby Park. Ryan Stevenson had the Jags in front early on but Josh Magennis and Manuel Pascali turned things round, only for Frans to level.