All teams are aiming to dethrone County champions St Rynagh's.
The Molloy Environmental Systems Offaly Senior Hurling Championship gets underway tonight with three games down for decision.
In Group 1, Clodiagh Gaels take on Kinnitty in Banagher while Birr face Kilcormac-Killoughey in Rath.
In Group 2, Ballinamere face Shinrone in Lusmagh.
All three games throw-in at 8pm.
Tomorrow in Group 2, there's the meeting of Belmont and Seir Kieran in Birr at 4pm.
The Senior B Hurling Championship also gets underway tomorrow with Lusmagh facing Tullamore (Kilcormac, 6pm), Drumcullen taking on Birr (Kinnitty, 7pm) and Clara facing Kilcormac-Killoughey (Killeigh, 7.30pm).
Westmeath Ladies Face Crucial Contest In Athlone
Laois Face Westmeath In Camogie League Derby
"They Do The Upmost For Their County" - Offaly Playing For Promotion Play-Offs
Buccaneers Hoping For Bounce Back Win Against UL Bohs
Athlone Insist Focus Is On DLR Waves After Sullivan Resignation
Westmeath Manager Expects Two Point Onslaught In Wexford
Patchy Laois Wrap League Campaign Against Table Topping Down
Laois And Offaly Begin Minor Hurling Campaign
"Special Doesn't Do These Lads Justice"
Upwardly Mobile Athlone Take On Treaty
Ireland Name Nine New Caps For Six Nations Squad
Panthers Promotion Hopes Dashed On Final Weekend
Colaiste Mhuire Mullingar: All Ireland Champions
Dublin Sink Offaly In Camogie
Lowry Looks On Shaky Ground Since Cognizant Collapse
"Unhappy" Laois Leave Fermanagh With Some Regret
Laois Ladies Football Legend Honoured By County Council
Westmeath School Primed For All Ireland Final Shot
Offaly Relegated After Cavan Defeat
Offaly And Longford Chase Semi-Final Spot In Division Four