Lewis Hamilton has won the Canadian GP, making the best of a two stop strategy. Romain Grosjean finished in second place with Sergio Pérez third on the podium. Sebatian Vettel finished fourth after a late pitstop while Fernando Alonso is 5th after struggling to the end on badly worn tyres.
They need to pit Lewis now. They're going to squander his lead and put him in danger. The tyres will easily last 20 laps, and the softs are going to take a lap or so come on song. He'll have the pace to beat the others even if they don't pit.