Russell Anderson scored in stoppage time as Aberdeen twice hit back to draw 2-2 with Motherwell at Fir Park.
Stephen McManus broke the deadlock early in the second half but Adam Rooney equalised on his debut, only for Zaine Francis-Angol to put Well back in front. Anderson scrambled the ball home with time running out to keep the Dons second in the table.
Hearts beat Ross County 2-1 in Dingwall to move into positive points for the first time this season. Callum Paterson gave Gary Locke's men the lead and Scott Robinson got the winner after Yann Songo'o had levelled for County.
Lee Ashcroft and Kris Boyd got the goals as Kilmarnock beat Inverness Caley Thistle at Rugby Park while St Mirren and Partick Thistle played out a 0-0 draw in Paisley.
Hibernian entertain Celtic on Sunday, live on Sky Sports at 12.45pm, and Dundee United host St Johnstone on Monday, live on BT Sport at 7.45pm.