Group A
Heart of Midlothian are through to the last 16 with a game to spare after beating Stirling Albion 2-0 at Forthbank while Cove Rangers defeated Inverness CT 3-1 at Balmoral Stadium.
Group B
Dundee United booked their place in the knock-out stages with a 1-0 win at East Fife while Kelty Hearts were 3-1 winners away to Elgin City.
Group C
Both matchday four games are on Wednesday, with Brora Rangers at home to Ross County and Montrose taking on Dundee at Links Park.
Group D
Brechin City beat Alloa Athletic 1-0 at Glebe Park while Livingston host Raith Rovers on Wednesday.
Group E
Ayr United are top of the section after a 1-0 victory at Hamilton Accies while Edinburgh City take on Falkirk at Ainslie Park on Wednesday.
Group F
Queen's Park defeated Annan Athletic 2-1 at Galabank. Airdrieonians host Motherwell on Wednesday, live on Premier Sports.
Group G
Kilmarnock and Morton drew 1-1 at Rugby Park, with Killie winning the penalty shoot-out. East Kilbride and Clyde drew 2-2 at K-Park, with the visitors picking up the bonus point.
Group H
St Mirren lead the way with maximum points after a 3-1 victory over Stenhousemuir at Ochilview and Partick Thistle beat Dumbarton 2-0 at Firhill.