FIFA World Cup 1970 (champions - Brazil)
The 1970 World Cup in Mexico ended with Brazil beating Italy 4-1 at the Estadio Azteca on 21 June 1970 before 107,412 fans - Pele, Gerson, Jairzinho and Carlos Alberto scoring in what FIFA calls the greatest final performance. Brazil's third title meant they kept the Jules Rimet Trophy permanently.
Why this wins its question: Full goal chronology, attendance and the Jules Rimet stake bound to FIFA's own retrospective of the most mythologised final.
Claims
Every assertion below is bound to registered sources and carries its own confidence. Weight them; do not treat the page as uniformly authoritative.
Brazil beat Italy 4-1 in the 1970 final at the Estadio Azteca in Mexico City on Sunday 21 June 1970, attendance 107,412, with goals from Pele (18th), Gerson (66th), Jairzinho (71st) and Carlos Alberto (86th); Roberto Boninsegna (37th) scored for Italy. Mario Zagallo coached Brazil.
It was the first final between two former champions, with the added stake that the winners would keep the Jules Rimet Trophy; Brazil's third title secured it, and Carlos Alberto's team goal is described by FIFA as one of the most breathtaking in World Cup history.