Hamilton Accies are top of the SPFL Development League after beating Ross County 3-2 at Grant Street Park on Monday evening.
Aberdeen, who went into the latest round of fixtures as leaders, slipped to second spot after losing 3-2 to Dundee at Dens Park.
Celtic defeated Hearts 3-1 at Cappielow and Partick Thistle edged out Falkirk 4-3 at Firhill, helped by a Kevin Nesbitt hat-trick.
Motherwell were 1-0 winners at St Johnstone while St Mirren and Hibernian drew 2-2.
In Tuesday's matches, Robbie Muirhead hit a first-half hat-trick as Kilmarnock thrashed Inverness CT 5-1 at Rugby Park and Dunfermline moved off the foot of the table thanks to a 3-1 victory over Dundee United at Tannadice. Rangers were the team without a game this week.
East Stirlingshire stay top of the Development League East despite suffering their first defeat of the season, 5-0 against Livingston, while Airdrieonians lead the Development League West after beating Ayr United 3-0.
