Aberdeen's unbeaten home record was shattered as St Johnstone ran riot in a 5-1 win at Pittodrie.
Sky Sports' Neil McCann offers his opinion on who the key players are in each of the six Scottish Premiership games this weekend.
Ryan Christie allowed his parent club Celtic to move closer to Premiership leaders Aberdeen with a winner for Inverness.
Celtic returned to winning ways by thrashing Dundee 6-0, keeping them five points behind league leaders Aberdeen.
Celtic manager Ronny Deila was understandably in a cheerful mood following his side's 6-0 demolition of Dundee.
St Johnstone, Kilmarnock and Dundee all won, while Motherwell drew with Ross County in the Scottish Premiership.
Rhys Healey has joined Dundee on a loan deal until January, while Simon Ferry has left the club by mutual consent.
Scottish football will be staying on Sky Sports after the partnership with the SPFL was extended until the 2019/20 season.
Dundee have signed Aston Villa youngster Riccardo Calder on a four-month loan deal.
Aberdeen equalled their best start to a league campaign as they won 2-0 at Partick on Saturday, while Hearts lost 3-2 at Hamilton.
Premiership Dundee, Hamilton and Partick were all dumped out of the Scottish League Cup at the second round stage.
The SPFL mascot race ends in controversy with the winner being a guest entry who didn't belong to a football club!
Hearts maintained their perfect start to the season with a comfortable 3-0 win over Partick Thistle at Tynecastle.
Hearts maintained top spot in the Scottish Premiership with a 2-1 victory at Ross County on Saturday, while Aberdeen won too.
Dundee scored twice in the final 13 minutes to earn a 2-2 draw with Dundee United in a thrilling match at Tannadice.
Dundee boss Paul Hartley has called on his side to improve on their sixth-place finish in the Premiership last season.
Dundee boss Paul Hartley has accused Celtic assistant manager John Collins of showing disrespect to their Scottish Premiership rivals.
Hearts' fine Scottish Premiership start continued with a 2-1 win at Dundee on Saturday, while Dundee United and Ross County also claimed victories.
A new survey shows Scottish football in rude health just three years after Armageddon was predicted for the game.
Hearts head coach Robbie Neilson believes Scottish clubs are now better placed to turn down low bids for players.