Three second-half goals by Oranmore saw the visitors get their Western Hygiene Supplies Premier Division campaign off to a winning start with a 3-1 away success over Hibernians in Bohermore yesterday.
Mike Fahy nudged them ahead just after the restart and then Lonan O'Farrell volleyed home a Dave Devlin cross for a tremendous strike to make it 2-0.
A solo effort by Alan Barrett, which saw him hold off three would-be challengers before firing past John Cotter, gave Oranmore a merited 3-0 advantage before Keith Ward got a late consolation goal for the home side.
Mervue United were the day's biggest winners as they defeated a poor West United outfit by 4-0 at South Park. The visitors led at the break, courtesy of a Ger McGrath looping shot, and in the closing quarter they added three more through Mark Dowling, Derek McWalter and Dara Ryan.
Mathew Finn scored the winner as newly promoted St Bernard's defeated last season's runners-up Corrib Rangers by 1-0 at Westside. The wide man slotted past John Egan from a tight angle midway through the opening half and in a game of few clear opportunities it was enough to create a surprise on day one.
All the goals came in the opening half as Salthill Devon defeated Dynamo Blues by 4-2 in Tuam. The visitors made a bright start and goals by Brian O'Grady and Alan Gilmore had them two up before a Mark Sweeney brace levelled matters at 2-2.
However, it was Devon who responded best to the challenge and two more through Mike Lindsay and O'Grady with his second of the game gave the visitors an advantage they were never to lose.
In the First Division MacDara were impressive 5-1 away winners over Crumlin. Three up at the break, they were always in command as Tommy Cashen (2), Peter Connolly (2) and Gary O'Donnell all found the net for the Carraroe-based side.
Bohemians and East United shared six goals at Millar's Lane as the sides finished level at 3-3, with Johann Ott, James Carolan and Ryan Sheppard all on the mark for the home side.
There was stalemate in Caherlistrane as St Patrick's and Mervue United B finished scoreless, while Corrib Celtic were comfortable 5-1 winners at home to Colmanstown.
Goals by Ronan Caldwell and Geoffrey Power helped OLBC to get their Second Division campaign off to a winning start as they defeated Oughterard by 2-0 at the Jesuit's.
Iomar Creaven and Sean O'Donovan scored a brace of late headers as Kiltullagh came from two down to draw 2-2 with Craughwell United. Cathal Greaney was on the mark twice for the visitors in the opening half from a penalty and a free kick.
Renmore also got their Division Four campaign off to a winning start as goals by Martin Fish and Rory Gaughan gave them a 2-0 away win over Athenry D, while Paul Doherty, Dave Ramberg, Shane O'Neill and Luke McNamara were all on the mark for Oranmore B in a 4-1 home win over Tuam Celtic B.