Donegal were the 2018 champions and were promoted to the 2019 Christy Ring Cup as a result of the restructuring of the All-Ireland Senior Hurling Championship.
Sligo were crowned champions after defeating Armagh in the final.
Sligo's victory completed back to back championship triumphs and promotion from the fifth tier to the third by winning the 2018 Lory Meagher Cup and the 2019 Nicky Rackard Cup.
The bottom teams from each group playoff in a relegation match with the losers playing in the 2020 Lory Meagher Cup.
Silgo are promoted and will now play in the 2020 Christy Ring Cup The bottom teams in each group meet in a relegation playoff.