A legendary
football event in
British secondary schools in which whole year groups will play against each other. There is no limit on the number of players, the entire school field is the pitch and the ball is constantly in play no matter what happens. All tactics are permitted. A typical El Classico will see years 10 and 11 play against years 12 and
13 but other combinations are possible. Teachers will often watch from the sidelines, fully aware that they cannot intervene in any
way. Such is the El Classico's reputation they usually occur only once per year.