Dominant Hamilton pulls 17 points clear of Vettel as Mercedes hit back in title race; Vettel drops from second to fourth after costly second stop for tyres; Verstappen claims first podium of year.
Hamilton opened up a 17-point advantage over Ferrari rival Sebastian Vettel and Mercedes reclaimed lead of the Constructors' Championship after an unexpectedly one-sided Barcelona race in which the reigning champion relentlessly pulled away from his chief title rival at the start and then expertly controlled the race.
"This is more like it, let's keep this up," said a delighted Hamilton after coming home 20 seconds ahead of team-mate Valtteri Bottas.
Vettel, having jumped Bottas off the line, was running second as late as lap 41 of 66 but dropped to fourth when a second stop for fresh tyres behind a Virtual Safety Car backfired.
A slow five-second service dropped the German behind not only the second Mercedes, but the lead Red Bull too. But Vettel defended the strategy call by saying it was "not an option for us to stay out" due to excessive tyre wear, adding that he overshot his pit box.