Armagh hope to extend title advantage
Division 2B leaders Armagh are locked in a race with Greystones for the title which looks set to go down to the wire with just one point separating them with four games to go.
Alex McCloy's squad - with former Ulster player Ali Birch in great form - are at mid-table Barnhall while struggling City of Derry could do them a favour should they get the better of Greystones at Judges Road.
Elsewhere, sixth-placed Dungannon entertain bottom side Thomond.
In 2A, leaders Banbridge - who have played one game more than the four sides beneath them - host fourth-placed Malone in what looks a crucial tie for both clubs' ambitions.
Queen's University, in fifth, are still in the chase for the play-offs but they will be badly hit by Ireland U20 and Ulster 'A' call-ups when taking on third-placed Nenagh at the Dub.
Bottom side Belfast Harlequins, who look certainties to take the drop, are heading south to Blackrock.
In 2C, sixth-placed Bangor meet play-off chasing Tullamore at Upritchard Park and a rare win for Jason Morgan's squad should save them from being dragged into a relegation scrap.
Rainey, who are in third, will aim to stay in the promotion race at Seapoint.
Last week's postponed fixtures have been rescheduled to be played on April 1.
Div 2A: Banbridge v Malone, Belfast Harlequins v Blackrock, Cashel v Sunday's Well, Highfield v Corinthians, Queen's v Nenagh
Div 2B: Bective v Wanderers, City of Derry v Greystones, Dungannon v Thomond, Barnhall v Armagh, Old Crescent v Skerries
Div 2C: Bangor v Tullamore, Midleton v Boyne, Navan v Kanturk, Seapoint v Rainey, Sligo v Bruff