2016 London mayoral election

The 2016 London mayoral election was held on 5 May 2016 to elect the next Mayor of London. It was the fifth London mayoral election. The sitting mayor of London Boris Johnson did not stand for re-election. The Conservative Party candidate was Zac Goldsmith and the Labour Party candidate was Sadiq Khan. In the election, Khan was elected mayor.
Results.
The election election used the supplementary vote system, which is where the voters choose a first and a second choice of candidates. After two rounds Khan was elected as Mayor.