Thomond will be playing in Division 2C next season after City of Derry's 27-14 win at Liam Fitzgerald Park condemned the Soda Cakes to relegation. At the business end of the table, Greystones picked up their ninth try-scoring bonus point of the campaign to stay top of the pile.
Navan and Sligo both won on the road and with just three points separating them at the summit, it is now a straight shoot-out between the pair for the Division 2C title and promotion. At the opposite end, Boyne's win over Bangor has boosted their chances of avoiding the drop.
Two of Saturday's Ulster Bank League Division 1A fixtures ended in draws, leaving just five points between the clubs aiming for a home semi-final and only three points splitting the sides battling against relegation.