Alloa Athletic
Manager: Peter Grant
Last season: 8th in the Championship
First two games: Morton (A), Dunfermline Athletic (H)
Summer signings: Nicky Jamieson (Queen's Park), Ray Grant (Clyde), Innes Murray (Hibernian, loan), Edin Lynch (Kilmarnock), Lee Connelly (Sunderland, loan), Stefan Scougall (Carlisle United)
Arbroath
Manager: Dick Campbell
Last season: 5th in the Championship
First two games: Raith Rovers (A), Hearts (H)
Summer signings: James Craigen (AFC Fylde), Scott Gallacher (Airdrieonians), Kris Doolan (Morton), Miko Virtanen (Aberdeen, loan), Michael Ruth (Aberdeen, loan), Connor Smith (Heart of Midlothian, loan)
Ayr United
Manager: Mark Kerr
Last season: 4th in the Championship
First two games: Queen of the South (H), Inverness CT (A)
Summer signings: Patrick Reading (Stevenage), Dario Zanatta (Partick Thistle), Tom Walsh (Inverness Caledonian Thistle), Michael Miller (Raith Rovers), Jack Baird (St Mirren), Joe Chalmers (Ross County), Viljami Sinisalo (Aston Villa, loan), Bruce Anderson (Aberdeen, loan)
Dundee
Manager: James McPake
Last season: 3rd in the Championship
First two games: Hearts (A), Morton (H)
Summer signings: Lee Ashcroft (Dunfermline Athletic), Danny Mullen (St Mirren), Alex Jakubiak (Watford), Charlie Adam (Reading), Nicholas Hamilton (York9 FC, loan), Jonathan Afolabi (Celtic, loan), Osman Sow (Dundee United)
Dunfermline Athletic
Manager: Stevie Crawford
Last season: 6th in the Championship
First two games: Inverness CT (H), Alloa Athletic (A)
Summer signings: Paul Watson (Dundee United), Steven Whittaker (Hibernian), Declan McManus (Ross County), Kevin O'Hara (Alloa Athletic), Dom Thomas (Kilmarnock), Iain Wilson (Kilmarnock), Owain Fon Williams (Hamilton Academical), Kerr McInroy (Celtic, loan), Lewis Mayo (Rangers, loan), Fraser Murray (Hibernian, loan)
Heart of Midlothian
Manager: Robbie Neilson
Last season: 12th in the Premiership
First two games: Dundee (H), Arbroath (A)
Summer signings: Craig Gordon (Celtic), Jordan Roberts (Ipswich Town), Ross Stewart (Livingston, loan), Elliott Frear (Forest Green Rovers), Josh Ginnelly (Preston North End, loan), Mihai Popescu (Dinamo Bucharest), Andy Halliday (Rangers), Stephen Kingsley (Hull City)
Inverness Caledonian Thistle
Manager: John Robertson
Last season: 2nd in the Championship
First two games: Dunfermline Athletic (A), Ayr United (H)
Summer signings: Shane Sutherland (Elgin City), Robbie Deas (Celtic), Scott Allardice (Waterford), Danny Devine (Dunfermline Athletic), Kai Kennedy (Rangers, loan), Wallace Duffy (St Johnstone)
Morton
Manager: David Hopkin
Last season: 7th in the Championship
First two games: Alloa Athletic (H), Dundee (A)
Summer signings: Gary Oliver (Queen of the South), Rabin Omar (Elgin City), Aidan McAdams (Rangers, loan), Ross MacIver (Motherwell, loan), Josh McPake (Rangers, loan), Michael Ledger (Queen of the South), James Wallace (Ross County), Markus Fjortoft (Hamilton Academical)
Queen of the South
Manager: Allan Johnston
Last season: 9th in the Championship
First two games: Ayr United (A), Raith Rovers (H)
Summer signings: Gregor Buchanan (Falkirk), Joe McKee (Dumbarton), Rhys McCabe (Brechin City), Connor Shields (Aldershot), Aidan Fitzpatrick (Norwich City, loan), Ayo Obileye (Ebbsfleet United), Willie Gibson (Stenhousemuir), Rohan Ferguson (Motherwell), Harry Robinson (Motherwell, loan), Niyah Joseph (Hamilton Academical), Kieran McKechnie (Rangers), James Maxwell (Rangers, loan), Euan East (Albion Rovers), Calvin McGrory (Queen's Park), Nortei Nortey (Chorley, loan)
Raith Rovers
Manager: John McGlynn
Last season: League 1 champions
First two games: Arbroath (H), Queen of the South (A)
Summer signings: Jamie MacDonald (Kilmarnock), Reghan Tumilty (Morton), Manny Duku (Hayes & Yeading), Frankie Musonda (St Albans City), Gozie Ugwu (Ebbsfleet United), Ethan Ross (Aberdeen, loan)