2017 All-Ireland Senior Football Championship
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| Championship details | |
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| Dates | 7 May – 17 September 2017 |
| Teams | 33 |
| All-Ireland Champions | |
| Provincial Champions | |
| Championship statistics | |
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← 2016
2018 →
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The 2017 All-Ireland Senior Football Championship is the 130th edition of the GAA's premier inter-county gaelic football tournament since its establishment in 1887.
Thirty-three teams take part – thirty-one of the thirty-two Counties of Ireland (Kilkenny, as in previous years, do not enter), London and New York.
Connacht, Leinster, Munster and Ulster each organise a provincial championship. All teams who lose their match in their provincial championship (with the exception of New York) enter the All-Ireland qualifiers. All provincial matches are knock-out.
Twenty eight of the twenty nine teams beaten in the provincial championships enter the All-Ireland qualifiers, which are knockout. Sixteen of the seventeen teams (New York do not enter the qualifiers) eliminated before their provincial semi-finals play eight matches in round 1, with the winners of these games playing the eight beaten provincial semi-finalists in round 2. The eight winning teams from round 2 play-off against each other in round 3, with the four winning teams facing the four beaten provincial finalists in round 4 to complete the double-elimination format. Further details of the format are included with each qualifier round listed below.
The four provincial champions play the four winners of round 4 of the qualifiers in the quarter-finals. Two semi-finals and a final follow. All matches are knock-out. If a game ends in a draw it is replayed. If a replay ends in a draw, two ten minute periods of extra time are played each way.
On 1 January 2017 the 'mark' was introduced. It is defined as -
When a player catches the ball cleanly from a kick-out without it touching the ground, on or past the 45m line nearest the kick out point, he shall be awarded a ‘mark’ by the referee. The player awarded a ‘mark’ shall have the options of (a) taking a free kick or (b) playing on immediately.
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