Nikos Androulakis has been elected the new leader of the Movement for Change (KINAL) party.
Partial results announced by the party at 8.45 p.m. showed Androulakis, 42, leading former Prime Minister George Papandreou, 69, 68.42% to 31.58%.
Papandreou has called Androulakis to congratulate him.
The polls closed at 7.30 p.m. Sunday, with just over 206,000 party members and friends voting, less than the 270,000 who voted in last Sunday’s first round.
Androulakis, a civil engineer, was a former youth leader at the Panhellenic Socialist Movement, one of KINAL’s constituent parties, and has been a member of the European Parliament since 2014. He is considered a moderate. He self-identifies as a Social Democrat.
With 22 MPs in the 300-member Parliament, KINAL is Greece’s third-largest party, behind conservative New Democracy and left-wing SYRIZA. It gained 8.10% of the votes in the last national election, in July 2019.