Before 2004 Greece had played six games at major tournaments. No wins. One goal. Then they won the Euros.
Euro 2004 in Portugal: 2-1 against the hosts, a draw with Spain, a defeat to Russia. Just enough to go through.
Quarter-final: France, 1-0. Semi-final: Czech Republic, 1-0. Final: Portugal again, 1-0.
Seven goals in six games. Three knockout wins, all 1-0.
You don't have to be the best team. You have to be the hardest to beat.