LONDON (Reuters) - Lewis Hamilton won his home British Grand Prix on Sunday and slashed Mercedes teammate Nico Rosberg's Formula One lead to four points after the German retired for the first time this season.

Hamilton, who last won at Silverstone in his 2008 championship year, now has 161 points to Rosberg's 165 with 10 races remaining and his title hopes fully restored.

It was his fifth win of the year.

Finland's Valtteri Bottas finished second for Williams, 30.1 seconds behind Hamilton, for his second successive podium with Australian Daniel Ricciardo third for Red Bull and a further 16.3 seconds down the road.