Hearts moved six points clear at the top of the Championship after winning 2-1 at Falkirk on Saturday evening.
Kevin McHattie and Soufian El Hassnaoui scored in the first half and Robbie Neilson's men held on after Botti Bia-Bi pulled one back for the Bairns.
Rangers, who go to Tynecastle next weekend, were held to a 1-1 draw by Alloa at Ibrox. Lee McCulloch opened the scoring in 72 minutes but Liam Buchanan equalised six minutes later as the Wasps held Ally McCoist's men for the second time this season.
Queen of the South remain three points clear of fourth-placed Hibernian after a 0-0 draw between the teams at Easter Road.
Raith Rovers stay fifth after coming from behind to beat Cowdenbeath 2-1 at Stark's Park. Kevin Moon and Christian Nade got the goals after Kudus Oyenuga gave the Blue Brazil the lead.
Dumbarton climbed to seventh spot thanks to a 2-1 victory at Livingston. Danny Mullen had Livi ahead at the break but Garry Fleming and Mitch Megginson struck in the second half.