The four-time world champion's fifth win of the season for Mercedes left him on 213 points to 189 for Ferrari's Sebastian Vettel, who finished second, and relishing the prospect of a stress-free family holiday.
Ferrari's times were eye-catching, and quicker than anything from last year's weather-affected first four-day test at the Circuit de Catalunya.
Max Verstappen gave himself a perfect 20th birthday present by winning the last Malaysian Grand Prix on Sunday, while Lewis Hamilton stretched his Formula One world championship lead to 34 points.
Ferrari made a strong start to the first day of Formula One testing, on Monday, with four-times world champion Sebastian Vettel top of the timesheets at lunchtime with 72 laps completed.
The strangest of campaigns crammed 17 races, instead of the record 22 originally envisaged, into little more than five months from July with four triple-headers.
Formula One world champion Lewis Hamilton was quickest for Mercedes in a rainswept final US Grand Prix practice session on Saturday that was held behind closed doors due to the weather conditions.
The German secured his first pole since Spain in May when the red flags came out with 36 seconds remaining, leaving team mate and championship leader Lewis Hamilton no chance of claiming a 12th pole in 14 races.
For Mercedes to be denied in Brazil, Ferrari will have to score 13 points more than Mercedes -- a feat they have managed only twice in 19 races so far this year.
Lewis Hamilton's hopes of clinching his fifth Formula One World championship at the US Grand Prix were boosted on Friday when Ferrari rival Sebastian Vettel was handed a three-place grid penalty for a practice infringement.
Lewis Hamilton continued his season's sweep of qualifying at the Bahrain Grand Prix.
Nico Rosberg won the Austrian Formula One Grand Prix in a Mercedes one-two finish on Sunday to stretch his championship lead over team mate Lewis Hamilton to 29 points after eight races.
Lewis Hamilton's dreams of winning the Italian Grand Prix for the third year in a row, and chalking up his 50th Formula One race victory, went out with the start lights on Sunday.
Sebastian Vettel trimmed Lewis Hamilton's Formula One lead to 17 points with eight races remaining.
The pole was the second of the Dutch 22-year-old's Formula One career and the first in Brazil for engine partners Honda since the late triple champion Ayrton Senna in 1991 with McLaren.
Lewis Hamilton of Mercedes stormed to pole position with a scorching lap in qualifying for the Malaysian Grand Prix as title rival Sebastian Vettel was left stranded in the garage and will start dead last.
Triple Formula One world champion Lewis Hamilton won the Austrian Grand Prix on Sunday after a last-lap collision with Mercedes teammate Nico Rosberg as they fought for the lead.
Championship leader Lewis Hamilton put his Mercedes on pole position for the first Russian Grand Prix in Sochi on Saturday with team mate and title rival Nico Rosberg having to settle for second.
Lewis Hamilton's lap of one minute 25.892 seconds is a track record at the Silverstone circuit.
Nico Rosberg crossed the line a mammoth 37.7 seconds ahead of German compatriot Sebastian Vettel, who recovered after colliding with his Ferrari team mate Kimi Raikkonen at the first corner, to claim his third win from three races this season.
Germany's Nico Rosberg won the Italian Grand Prix for dominant Mercedes on Sunday to cut teammate Lewis Hamilton's Formula One world championship lead to two points with seven races remaining.
Sebastian Vettel won a tense Hungarian Grand Prix on Sunday in a Ferrari one-two that stretched his championship lead to 14 points after Mercedes rival Lewis Hamilton sportingly surrendered third place to his teammate.
Ferrari are giving Sebastian Vettel the Michael Schumacher treatment, according to the German's main title rival Lewis Hamilton.
'It's a great job by the team. Usually in the first day you don't get that many laps so I'm really happy'
Nico Rosberg drew first blood for Mercedes in the new Formula One season with a dominant Australian Grand Prix victory on Sunday after pole-sitter Lewis Hamilton and world champion Sebastian Vettel retired with reliability problems.
Sebastian Vettel has lived through a number of false dawns at Ferrari but bright sunshine bathed the team's garage after the German's Australian Grand Prix victory on Sunday.
The next time the four-time world champion will get behind the wheel will be for first Friday practice at Melbourne's Albert Park on March 23.
The Dutchman stopped Hamilton from winning an eighth title with a gutsy turn in the final lap.
Thunder, lightning and torrential rain washed out second practice at the U.S. Formula One Grand Prix on Friday after Nico Rosberg went fastest for Mercedes in a largely meaningless morning session.
Monaco's Leclerc, who had started on pole position for the first time, lost power with 10 laps to go while leading and finished third with an extra point for the fastest lap.
Formula One world champion Lewis Hamilton won the Belgian Grand Prix from pole position on Sunday to increase his lead over Mercedes team mate Nico Rosberg to 28 points with eight races remaining.
Ferrari's Sebastian Vettel was first and last in Austrian Grand Prix practice on a Friday that team principal Maurizio Arrivabene will not forget in a hurry after nearly being run over by Felipe Massa.
The Formula One season winds up in Abu Dhabi on Sunday with both titles won, Lewis Hamilton aiming to close the year on a winning note and big money still at stake for those further down the paddock pecking order.
Montreal-born Lance Stroll, who celebrated his 18th birthday on October 29 and has yet to pass his driving test, will be the first Canadian F1 racer since 1997 world champion Jacques Villeneuve, who won his title at Williams and retired in 2006.
Nico Rosberg denied world champion team mate Lewis Hamilton a fifth pole position in a row by seizing the top slot for Mercedes at the Spanish Grand Prix on Saturday.
Nico Rosberg eased to victory at the Japanese Grand Prix on Sunday with a drive that handed Mercedes their third straight constructors championship and extended the German's lead in his pursuit of a maiden Formula One title.
Nico Rosberg swept to his fifth successive pole position on Saturday with Mercedes team mate and triple Formula One world champion Lewis Hamilton qualifying alongside on the Brazilian Grand Prix front row.
Hamilton wrapped up his record-equalling seventh title in Turkey last month and picked up his 11th win of the season in Bahrain on Sunday. Mercedes have already won the constructors' title for an unprecedented seventh year in a row.
Since its inaugural race in 2008 the Singapore Grand Prix has gained a reputation for being the toughest challenge in Formula One, providing drivers with an extreme test of endurance in the trickiest conditions.
In a race of safety cars and surprises, Verstappen's former team mate Pierre Gasly made a first podium appearance in second place for Red Bull-owned Toro Rosso, a rare Honda-powered one-two.
Mercedes opened their Formula One season by dominating practice at the Australian Grand Prix on Friday, with Nico Rosberg edging his world champion team mate Lewis Hamilton in both sessions at Albert Park.