Tournament favourites Rangers booked their place in Monday afternoon's Petrofac Training Cup second-round draw with a 6-2 victory over Hibernian.
Martyn Waghorn and Kenny Miller both scored twice as new manager Mark Warburton enjoyed a winning start at Easter Road. James Tavernier and Andy Halliday also netted for Rangers, with Sam Stanton and Jason Cummings (penalty) replying for Hibs.
Holders Livingston saw off Clyde 2-1 at the Energy Assets Arena with goals from Danny Mullen and Myles Hippolyte before Michael Bolochoweckyj pulled one back.
St Mirren came from behind to beat Berwick Rangers 3-1 in Paisley, helped by a Scott Agnew double. Steven Thompson's penalty had cancelled out Blair Henderson's early opener.
Geoff Mitchell got the only goal as last season's runners-up Alloa beat Highland League champions Brora Rangers at Dudgeon Park.
Falkirk required stoppage-time goals from John Baird and Bob McHugh to secure a 3-1 home win over East Fife after Peter Grant's early opener had been cancelled out by Kevin Smith.
Derek Lyle and Ryan Conroy netted for Queen of the South as they beat Stranraer 2-0 at Palmerston.
Dumbarton held on for a 3-2 win at Morton thanks to a Grant Gallagher brace and a Garry Fleming goal. Lee Kilday and Peter MacDonald (penalty) reduced the deficit.
Dunfermline claimed a 4-1 triumph over Arbroath at Gayfield. Faissal El-Bakhtaoui (2), Michael Moffat and Ryan Wallace got the goals for the Pars, with Martin Grehan replying.
Josh Todd hit a second-half hat-trick as Annan came from behind to surprise Airdrieonians 3-1 at Galabank after Sean Crighton struck early on for the Diamonds.
Jordon Brown grabbed a double and Rory McAllister was also on target as Peterhead beat League 1 rivals Brechin 3-0 at Glebe Park.
Iain Campbell scored the only goal with 11 minutes left as Forfar beat Montrose 1-0 at Station Park.
Lewis Vaughan grabbed winner as Raith Rovers edged out Cowdenbeath 1-0 in a Fife derby at Central Park.
Alan Trouten (penalty), Nicky Devlin and Ross Caldwell were the Ayr scorers as they overcame Albion Rovers 3-1 at Somerset Park. Ally Love netted a late consolation.
Stenhousemuir beat tenants East Stirlingshire 3-2 at Ochilview. Stephen Stirling scored twice and Colin McMenamin also netted for the Warriors. Reece Donaldson and David McKenna were the Shire marksmen.
Elgin City twice hit back to see off Stirling Albion 3-2 at Borough Briggs with goals from Craig Gunn (penalty), Jamie Duff and Brian Cameron. Craig Beattie and Sandy Cunningham struck for the Binos.
Queen's Park beat Edinburgh City 3-1 on penalties after a 0-0 draw against the Lowland League champions at Meadowbank Stadium.
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