The defending champions were Corofin from Galway who defeated Nemo Rangers from Cork on 17 March 2018 to win their 3rd title.
The format can be straight knockout, double-elimination, a league, groups, etc.
Normally it is the club team that exited the championship at the highest stage.
The Kilkenny senior champions play in the Leinster Intermediate Club Football Championship.
In previous years they played one of the provincial champions in a single match in December referred to as a quarter-final.
If the score is still level after extra time the match is replayed.
All-Ireland The two semi-finals between the four provincial champions are usually played on a Saturday in mid February.
The All-Ireland final is traditionally played in Croke Park on St. Patrick's Day, the 17th of March.
If the score is still level after extra time the match is replayed.
TG4 continue to broadcast live and deferred club championship games each year.
[1] Eir Sport entered the second year of their agreement to broadcast live Gaelic football and hurling club championship games, including county championships, county finals and provincial and All-Ireland club championship matches.
For official fixtures and results see All-Ireland Senior Club Football Championship at gaa.ie Two ten minute periods of extra time are played if the match is level at the end of the normal sixty minutes.