Scottish Premier League champion Celtic began the campaign with a 1-0 victory over Aberdeen at Parkhead.
Debutant Lewis Guy had given the host the lead just after the half-hour mark but two goals in the final 20 minutes from
Heart of Midlothian secured a less-than-comfortable 2-0 win over St Johnstone at Tynecastle despite the visitor playing over half of the match against 10 men.
Premier League new boy Ross County extended its unbeaten league run into the top flight as a goalless draw with Motherwell made it 35 games without defeat.
County produced a solid top flight debut and restricted Motherwell to very few chances at the revamped
Fellow Premier League new boy Dundee enjoyed a respectable return as it claimed a point after holding Kilmarnock to a goalless draw.
Its route to the SPL may have been unusual and controversial in the eyes of some, after Rangers' demotion, but Dundee demonstrated an ability to hold its own after a seven-year absence from the top division.
Scottish Premier League
Ross County manager Derek Adams has extended his contract until the northern summer of 2016.