Lewis Hamilton won the Canadian Grand Prix after soaking up 70 laps of pressure from Mercedes team-mate Nico Rosberg.
Although Rosberg was unable to get close enough to attempt an overtaking move, his constant presence gave Hamilton no margin for error. A locked brake at the hairpin after his single pit stop was as close as Hamilton came to a mistake, but it was not enough to open up an opportunity for Rosberg. A marginal fuel load made for a slightly edgy finish to the race for the Mercedes pit wall, but Hamilton showed no signs of being flustered in the cockpit. His win puts an end to Rosberg's brief run of consecutive victories at the last two races and sends Hamilton 17 points clear in the drivers' championship.
The battle for third provided more entertainment, with Kimi Raikkonen throwing away a podium finish with a spin at the hairpin. In a repeat of the mistake he made at the same part of the track last year, Raikkonen lost the rear of his Ferrari under power just after taking on his second set of tyres. The lost time completing a 360 degree pirouette was enough to hand third place to Valtteri Bottas, with Raikkonen 4.9s behind at the end despite swapping to a two-stop strategy in the hope of attacking the Williams on quicker tyres at the end of the race.
Sebastian Vettel recovered from an 18th-place grid position to finish just 4.2s off Raikkonen and ahead of Felipe Massa, who scythed through the field from 15th on the grid to sixth at the finish. Pastor Maldonado finished seventh ahead of Nico Hulkenberg, Daniil Kvyat and Romain Grosjean in the last of the points-paying positions. Grosjean picked up a five-second time penalty and threw away a chance of finishing ahead of his team-mate when he clipped Will Stevens' Manor as he lapped it, forcing him to pit to replace a punctured rear tyre.
The start of the race was Rosberg's best chance to get ahead of his team-mate, but Hamilton angled his car across the grid to block off an opportunity. In turn that gave Raikkonen a chance to attack the second Mercedes, but Rosberg was wise to the threat and positioned his Mercedes on the apex of the second corner to force the Ferrari the long way round.
With degradation limited, a one-stop strategy was the obvious choice for the two Mercedes, but further down the grid the strategists had more room for manoeuvre. Vettel, for example, pitted on lap seven as Ferrari aimed to give him as much clear air as possible to make the most of the Ferrari's pace. It worked to perfection and by lap 30 he was up to seventh before pitting a second time. He emerged ahead of Massa after the second stop, who had been doing his hard work overtaking on the track while running a one-stop strategy, and the pair moved up to fifth and sixth by the finish, which was as good as could have been expected given their starting positions.
At the front, Hamilton pitted on lap 29 and Rosberg on lap 30. Hamilton made a slight mistake on his outlap and ran wide at the hairpin, allowing Rosberg to close the gap once the pit stops had been completed. On lap 45 he was within a second of Hamilton, but was also having to cool his brakes by moving into clean air on the straights. In the end it was as close as he managed to get, crossing the line 2.2s off Hamilton at the chequered flag.
With seven rounds gone Hamilton's 17-point lead puts him in a much more comfortable position than he was at this time last year when a retirement had left him 22 points shy of Rosberg.