Hearts came from behind against Dundee at Dens Park to make it two wins out of two games on the club's return to the Scottish Premiership.
Kane Hemmings scored his first Dundee goal after five minutes. Hearts were awarded a penalty on 56 minutes after a James McPake handball and Juanma Delgado levelled the scores from the spot.
Delgado bagged a second six minutes later to give Hearts all three points.
A Louis Laing own goal and a 95th-minute strike from Simon Murray secured a 2-0 win for Dundee United against Motherwell at Fir Park.
A Craig Curran brace saw Ross County run out 2-0 winners over Hamilton after Ali Crawford missed an early penalty for the Steelmen.
Elsewhere, a late Graham Cummins equaliser gave St Johnstone a 1-1 draw against Inverness at McDiarmaid Park.
Results in full: Dundee 1-2 Hearts, Motherwell 0-2 Dundee Utd, Ross County 2-0 Hamilton, St Johnstone 1-1 Inverness
