Mercedes driver Lewis Hamilton cruised to victory in the Singapore Grand Prix to strengthen his hold on this year's world championship.
Hamilton's controlled drive from a pole position won brilliantly on Saturday was helped by the latest in a series of questionable strategy calls from Ferrari.
It dropped Hamilton's title rival Sebastian Vettel from second to third behind Max Verstappen, throwing away a position the German had earned by overtaking the Red Bull driver on the first lap.
While Vettel was left to question his team once again this season - and for the second time this weekend after a less-than-perfect qualifying session - Hamilton's only worrying moment was caused by back markers at about two-thirds distance.
Haas driver Romain Grosjean and Williams' Sergey Sirotkin ignored the closing Hamilton in the heart of their battle for position and cost him his five-second advantage over Verstappen.
