MONTREAL (AP) — Whether it's practice, qualifying or the races themselves, Mercedes teammates Lewis Hamilton and Nico Rosberg have been dominating Formula One.
Winners of all six races so far this season, the two drivers posted the fastest laps on the first day of practice Friday at the Canadian Grand Prix. Hamilton turned in the top time of 1 minute, 16.118 seconds in the afternoon practice — a speed of 128.16 mph (206.253) — on the 2.71-mile (4.36-kilometer) Circuit Gilles Villeneuve, and Rosberg was just 0.175 seconds slower.
"Nico looked very quick today as well so I have my work cut out for sure," said Hamilton, who won four races in a row before finishing second to Rosberg at Monaco last month. "The Ferraris looked quite close today and the rest of the field seemed closer in general but hopefully not too close."
Rosberg leads the Formula One championship with 122 points, thanks to two victories and four second-place finishes. Hamilton, the 2008 champion, is in second place for the season with 118 points from four victories and a No. 2 finish; he lasted just two laps before a failed cylinder knocked him out of the season-opening Australian Grand Prix.
Hamilton won at the track for McLaren in 2007, 2010 and 2012.
Ferrari's Fernando Alonso is in third place with just 61 points. He had the fastest lap in the morning practice Friday with a time of 1:17.238.
"It's going to be a tough challenge" to catch Mercedes, Ferrari engineering director Pat Fry said. "But we just need to keep on. There's quite a gap to close, let's face it, but we just need to do our best and keep developing."
Fry said Ferrari's garage was busy Friday after problems with Kimi Raikkonen's power unit limited him to just 15 laps in the morning. But he said both drivers got enough time on the track to provide data that the team can evaluate before practice resumes on Saturday morning.