Ten county teams compete in the Senior Championship out of twenty-seven who compete overall in the Senior, Intermediate and Junior Championships.
All the teams play each other once, scoring two points for a win and one for a draw.
The semi-final winners contest the 2015 All-Ireland Senior Camogie Championship Final As stated in the rules, it was originally planned that a coin toss would take place to decide which of Dublin and Clare would progress to the quarter-finals.
The head-to-head match between them had ended in a 1-8 to 1-8 draw and competition rules meant that they were level in the group.
Both teams withdrew in protest at the proposed coin toss and eventually the Camogie Association decided that a play-off match would take place instead.