Conservative Karol Nawrocki has won Poland’s weekend presidential runoff election, according to the final vote count.

Nationalist opposition candidate Karol Nawrocki narrowly won Poland's presidential election, results showed on Monday, delivering a major blow to the centrist government's efforts to cement Warsaw's pro-European orientation.

A historian and populist firebrand who boasted about his brawls with soccer hooligans has narrowly won Poland’s presidential election, in a political upset that could torpedo the centrist government’s efforts to unspool the legacy of authoritarianism in the country.