Hamilton began life back in Scottish League One with a routine 2-0 victory over Montrose.
Oli Shaw gave Accies, relegated from the William Hill Championship last season, the lead on the stroke of half-time before Charlie Telfer made sure of the win in the 62nd minute.
Jason Brown bagged a brace as Peterhead brushed aside East Fife 4-1 in the battle of the teams promoted from League Two.
Lewis Latona put the Fifers in front after 20 minutes but David Wilson drew level moments later, while Kieran Shanks struck from the penalty spot just before the half hour.
Brown then put Peterhead in firm control just before half-time and then rubber-stamped an excellent start to the season a minute before the end.
Cove Rangers, beaten in last season’s Championship play-off final by Airdrieonians, started their campaign with a 2-0 defeat at home by Queen of the South.
Kurtis Guthrie put the Doonhammers ahead just after the quarter of an hour mark but it was not until the 81st minute that they sealed all three points courtesy of Kai Kennedy’s strike.
Alloa came from a goal down to claim a 2-1 win at Stenhousemuir.
Dale Carrick put the hosts ahead after a quarter of an hour but Steven Buchanan and Kurtis Roberts struck either side of the interval to help the Wasps start their season on the right note.
Billy McKay, Luis Longstaff and David Wotherspoon were all on target as Inverness eased to a 3-0 victory at Kelty Hearts.
In League Two, Alistair Roy and Mark Durnan scored to help relegated Dumbarton collect a 2-1 win over Clyde, whose goal from Marley Redfern proved to be mere consolation.
Annan, also relegated from League One last season, were grateful for Miles Gaffney’s late winner after creeping past Elgin 3-2 in a game with a dramatic finish.
Dylan Gavin’s goal for Elgin was cancelled out by Gaffney before Aidan Smith headed home a minute from time. Keith Watson’s own goal looked to have rescued a point for Elgin but Gaffney had the final say.
Stuart Morrison’s first-half effort ensured Forfar ran out 1-0 winners over Stranraer, who played the last half hour with 10 men when Evan Dunne was sent off.
Russell McLean’s double lifted Stirling to a 2-1 win at Edinburgh City, who bagged a late consolation through Robert Mahon’s spot-kick.
Cameron Russell’s early goal and Mark Stowe’s brace gave Spartans a 3-1 victory at East Kilbride, who had levelled through Keir Foster. Russell’s day ended on a sour note when he was red-carded.