Celtic moved 16 points clear at the top of the William Hill Premiership thanks to a 2-0 home win over third-placed Dundee United.
Daizen Maeda opened the scoring midway through the first half and substitute Reo Hatate added a late second goal for Brendan Rodgers' side.
In Wednesday's other rearranged Premiership fixture, it ended 0-0 between Kilmarnock and Motherwell at the BBSP Stadium, Rugby Park.
East Fife are now four points clear in William Hill League 2 after coming from behind to beat Edinburgh City 4-2 at Meadowbank Stadium. SPFL top scorer Connor Young bagged a double for City but Alan Trouten (2), Scott Shepherd and Jack Healy all netted for Dick Campbell's men.