Michael Higdon's hat-trick earned Motherwell a 4-1 victory over Inverness as Dundee beat Hearts to claim their first win in the SPL.
Higdon's hat-trick fired the Fir Park side to the top of the SPL.
Tom Hateley had opened the scoring for the hosts directly from a 10th-minute corner and Higdon netted the first of his three goals a minute later.
Richie Foran reduced the deficit to 2-1 before half-time but Higdon added another two goals in eight minutes during the final quarter of the game, with Inverness seeing a late Andrew Shinnie penalty saved by Darren Randolph.
Also on Sunday, Dundee won their first league match of the season after a 1-0 victory over Hearts at Tynecastle.
Ryan Conroy's third-minute penalty was all that was required for Dundee to secure all three points and lift them off the bottom of the table.
Hearts dominated the attacking possession but could not beat an inspired Rab Douglas in the Dundee goal. The veteran goalkeeper made a string of impressive stops including John Sutton's first-half spot kick.
