With only six points separating the top six teams there is still plenty of scope for a title challenge or a top four play off spot to be fought for.
There is also the prospect of a top eight spot at stake to secure a place in Division 1 A next season.
AIB League Division 1 (All fixtures Saturday 7th, 14:30 unless stated)
Ballymena v Shannon (Eaton Park)
Blackrock College RFC v Galwegians (Stradbrook)
Buccaneers v St. Mary's College (Dubarry Park)
Cork Constitution v Clontarf (Temple Hill)
Garryowen v Young Munster (Dooradoyle)
Old Belvedere v Dungannon (Anglesea Road)
U.L. Bohemian v Terenure College (Anacotty)
Dolphin v UCD (Musgrave Park) Sunday 14:30
In division two things are still tight at the top but Lansdowne, with a four point lead over UCC, will be hoping to maintain their lead when they entertain DLSP, currently struggling in 13th place.
UCC are also at home with cork neighbours Clonakilty the visitors. In the chasing pack Ballynahinch, Old Crescent and Bruff will also be aiming to capture one of the top two spots.
AIB League Division 2
Ballynahinch v Dublin University (Ballymacarn Park)
Bective Rangers v Bruff (Donnybrook)
Belfast Harlequins v Highfield (Deramore Park)
Lansdowne v D.L.S.P. (RDS)
Old Crescent v Thomond (Rosbrien)
U.C.C. v Clonakilty (The Mardyke)
Wanderers v Greystones (Merrion Road)
Division 3 is also looking like a dogfight in the season run in. Corinthians are the pace setters on 40 points but this weekends's tie with second place Co. Carlow could go a long way to deciding the final placings.
Queen's, Midleton and Old Wesley will all be keeping up the pressure and listening out for the result from Corinthian Park on Saturday as they will be hoping to capitalise on any slip ups.
AIB League Division 3
Banbridge v Queens University (Rifle Park)
Barnhall v Ards (Parsonstown)
Connemara v Nenagh Ormond (Monastery Field)
Corinthians v Co. Carlow (Corinthian Park)
Midleton v Naas (Towns Park)
Portadown v Waterpark (Chambers Park)
Sundays Well v Rainey OB (Musgrave Park)
Suttonians v Old Wesley (John J McDowell Park)
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