Hearts are on the brink of the Championship title after winning 3-0 at play-off chasing Falkirk on Saturday.
Jamie Walker, Genero Zeefuik and James Keatings got the goals and Robbie Neilson's men will be champions if Hibernian fail to beat Rangers at Easter Road on Sunday in a game that is live on Sky Sports at 12.45pm.
Queen of the South strengthened their grip on fourth place with a 4-1 win over Cowdenbeath at Palmerston. Iain Russell, Michael Paton, Mark Durnan and Derek Lyle were all on target, with Sean Higgins replying for the Blue Brazil.
Raith Rovers edged out Alloa 2-1 at Stark's Park. Mark Stewart's opener was cancelled out by Liam Buchanan but Lewis Vaughan got the winner just after the break.
Dumbarton staged a late fightback to beat bottom club Livingston 2-1 at the Energy Assets Arena. Craig Sives gave Livi an early lead but Scott Agnew and Garry Fleming struck for the Sons in the last 10 minutes.