The UEFA European Under-19 Championship consists of three distinct stages: the qualifying round, the elite round and the final tournament.
The qualifying round, played in autumn, is made up of 13 groups of four teams playing in one-venue mini-tournaments. The top two from each progress alongside the third-placed team with the best record against the top pair in their group.
In the elite round, played in the spring, those 27 qualifiers join the top seed, given a bye, in seven mini-tournament groups of four. The group winners then join the hosts in the finals.
The seven qualifiers plus the hosts are split into two groups of four who play each other once, with the top two progressing to the semi-finals. The winners of those ties contest the final.
Further details, including the criteria for separating teams that finish level on points in a group, or after extra time in a match, can be found in the official competition regulations.
Armenia and Northern Ireland have been chosen to host the UEFA European Under-19 Championship final tournaments of 2019 and 2020 respectively by the UEFA Executive Committee at its meeting in Nyon, Switzerland.
This will be the first UEFA final tournament to be staged in Armenia, who reached the Under-19 finals in 2005, departing at the end of the group stage with the respectable record of W1 D1 L1.
That tournament was held in Northern Ireland, which will be the venue again for the 2020 event. The home side will be looking to improve on that 2005 campaign, in which they lost all three of their finals games.
Georgia will host this season's U19 final tournament in July, with the 2018 edition taking place in Finland.
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