Aberdeen made it five wins out of five with a 2-0 victory against Partick Thistle in the Ladbrokes Premiership on Saturday.
Last year's top scorer Adam Rooney and Kenny McLean netted early in the second half at Firhill as Derek McInnes' men maintained their 100% record.
Hamilton Accies ended Hearts' winning start with a 3-2 triumph in a dramatic game at New Douglas Park. Gramoz Kurtaj gave Accies the lead but Billy King and Callum Paterson turned the tide after half-time. Paterson was then sent off and Ali Crawford and Jesus Garcia Tena scored in the closing minutes to give Martin Canning's men a third straight win.
Celtic moved to the top of the table with a 3-1 home win over St Johnstone. An early Dedryck Boyata own goal gave Saints the lead but Leigh Griffiths, Tom Rogic and Charlie Mulgrew all netted for Ronny Deila's men.
Ross County enjoyed a 2-1 victory against Dundee United in Dingwall thanks to first-half goals from Liam Boyce (penalty) and Andrew Davies. Sean Dillon's stunning strike reduced the deficit in the second half.
A Louis Moult penalty after 13 minutes saw Motherwell edge out Kilmarnock 1-0 at Fir Park to leave Killie at the foot of the table.
Inverness Caley Thistle were denied their first league win of the season when Kane Hemmings scored in stoppage time to earn Dundee a 1-1 draw at Dens Park. David Raven opened the scoring on the hour mark for the visitors, who had Andrea Mbuyi-Mutombo sent off at the end.