Aberdeen beat Dundee United 2-0 at Tannadice on Saturday to move level on points with Jackie McNamara's men.
Adam Rooney got both goals in the first half as a crowd of 11,196 saw the Dons gain revenge for a 3-0 defeat on the opening weekend of the season.
Partick Thistle claimed a hugely impressive 4-0 win away to second-placed Inverness CT. Ryan Stevenson grabbed a double and Gary Fraser and Conrad Balatoni were also on target.
Hamilton Accies saw off Dundee 2-1 at New Douglas Park thanks to early goals from Tony Andreu and Mickael Antoine-Curier. Greg Stewart pulled one back in the second half before Gary Harkins was sent off for the visitors in stoppage time.
Brian Graham's late penalty proved decisive as St Johnstone leapfrogged Kilmarnock with a 1-0 victory at Rugby Park.
Tony Dingwall scored twice, including a stoppage-time equaliser, as Ross County earned a 2-2 draw at Motherwell to move off the foot of the table. John Sutton and Henrik Ojamaa netted for Well, who this morning confirmed Ian Baraclough as their new manager.
Leaders Celtic are at home to bottom club St Mirren on Sunday, kick-off 1.00pm.
