Mayo Senior Football Championship

The Mayo Senior Football Championship (also known for sponsorship reasons as the Treanlaur Catering Mayo Senior Football Championship) is an annual Gaelic Athletic Association competition organised by Mayo GAA between the top Gaelic football clubs in County Mayo. The winner of the Mayo Championship qualifies to represent the county in the Connacht Senior Club Football Championship, the winner of which progresses to the All-Ireland Senior Club Football Championship.

The inaugural winners of the Mayo Championship were Castlebar Mitchels who won in 1888. The most successful team to date are Ballina Stephenites who have won on 36 occasions. The current holders are Castlebar Mitchels. The trophy presented to the winners is the Paddy Moclair Cup, which was first presented to the winners of 1971 final.

Format
The current format sees the top sixteen teams in the county compete. The sixteen teams are split into four groups of four, with each team in a group playing the other three teams only once. The previous year's eight quarter finalists are seeded, meaning that only two of these teams are drawn in each group.

Two points are awarded for a win and one for a draw. The top two teams in each group qualify for the quarter-finals, with the group winners seeded to play against the group runners-up. If teams are level on points, scoring difference is used to separate teams, followed by total score. From the quarter-finals on, the competition is straight knockout.

The bottom team in each group enters a relegation play-off, and are drawn to play each other. The losers of each game then play in a relegation play-off final. The losers of this game are relegated to intermediate grade for the next season.