Banbridge and Rainey are among the early pace setters in the Ulster Senior League.
Both sides have won their opening two games with Banbridge recording an impressive 36-0 victory against Ards at Hamilton Park.
Bann coach Roy Stevenson is hoping the side can continue their rich vein of form although they will face their toughest task yet against Ballymena at Rifle Park on Saturday.
He said: "The boys are very much up for it this year and we're looking forward to the All Ireland League. We're putting the effort in and have worked very hard. We're taking the opportunity to blend in young players."
New signing Mark Hill was inspirational as Banbridge led 22-0 at the break with four well worked tries and two more in the second half completed the rout.
Winger Claude Crawford scored the best try of the game which started with Hill winning ball in his own half.
Willie Anderson's Rainey maintained their 100 percent start with a 32-24 victory over Instonians at Hatrick Park. Man of the match Stephen McGuiness scored two of the home side's four tries. Peter Boyle and Neil Suiter also crossed for the Old Boys with Michael Glancy adding 14 points with the boot.
Ballymena put last week's shock against Rainey behind them by beating Ballynahinch 19-0 at Eaton Park. All the points came in the first half with Chris Smith scoring two tries and Matt Burke opening his account for the Braidmen. Belfast Harlequins edged out Queen's 25-16 at the Dub.