Celtic moved five points clear at the top of the Premiership with a 3-0 home win over Dundee United on Saturday.
First-half goals from Gary Mackay-Steven, John Guidetti and Jason Denayer gave Ronny Deila's men a comfortable victory in the fourth meeting between the teams in the space of 14 days.
Second-placed Aberdeen were held to a 1-1 draw by top-six chasing Dundee at Dens Park. Adam Rooney gave the Dons an interval lead but Stephen McGinn equalised for Paul Hartley's team midway through the second half.
Inverness CT, in third spot, were beaten 1-0 by Partick Thistle at Firhill, with Steven Lawless scoring the only goal six minutes from time.
Ross County continued their good run with a 2-1 win over Kilmarnock in Dingwall. Michael Gardyne and Craig Curran scored for the Staggies before Lee Ashcroft pulled one back late on.
St Johnstone are up to fifth place following a 2-0 home victory against a St Mirren side who are four points adrift at the foot of the table. Brian Graham and Steven Anderson got the goals for Tommy Wright's team.