Political outsider Stefanos Kasselakis wins race to lead Greece’s Syriza

Centre-left entrepreneur wins 56.69% of vote in stunning and unprecedented rise from nowhere'

Stefanos Kasselakis, an outsider with no previous experience of politics in Greece, has emerged the victor of an electric race to lead the leftwing Syriza, the country's main opposition party.

The Greek-American entrepreneur, who announced his candidacy for the post barely four weeks ago, attained 56.69% of the vote against 43.31% for Efi Achtsioglou, a former labour minister who had long been viewed as the favourite. Kasselakis' win now makes him one of the most powerful people in Greece.