Lewis Hamilton boosted his morale with the fastest lap in Russian Grand Prix practice on Friday after Mercedes team mate Nico Rosberg set the early pace and Ferrari suffered reliability problems.
Starting second behind pole-sitter Hamilton, Bottas got the jump on the Briton during a typically messy start at Albert Park and ended up cruising to his fourth win by some 20.80 seconds after delaying a tyre-change.
Team by team analysis of Sunday's Russian Grand Prix (listed in championship order):
Sahara Force India are set to finish sixth in the team championship this year after Nico Hulkenberg ended the Brazilian Grand Prix in eighth position while Sergio Perez could not enter the points bracket.
Valtteri Bottas seized his first pole position of the Formula One season in Austria on Saturday with Mercedes team mate and world championship leader Lewis Hamilton having to settle for second.
Jenson Button hailed Honda's latest power unit as a good step forward for McLaren after completing 121 laps and finishing fifth fastest on the second day of Formula One's final pre-season test on Wednesday.
Fernando Alonso passed a final medical examination on Thursday and will be able to participate in the Malaysian Grand Prix this weekend after the Spaniard missed the Formula One season-opener in Australia due to concussion.
Formula One world champion Lewis Hamilton took pole position for the season-opening Australian Grand Prix on Saturday ahead of Mercedes team mate Nico Rosberg as the Silver Arrows continued to underline their dominance.
McLaren Formula One driver Fernando Alonso will miss this week's final pre-season test in Barcelona after leaving hospital on Wednesday following a big crash three days ago.
Sebastian Vettel trimmed Lewis Hamilton's Formula One lead to 17 points with eight races remaining.
Mick Schumacher made his first track appearance as a fully signed-up Formula One driver on Friday
Lewis Hamilton led a Mercedes 1-2 at the top of the timesheets for the first free practice session at the season-opening Australian Grand Prix on Friday, while McLaren's hopes of a clean start were tempered by reliability issues.
Lewis Hamilton's lap of one minute 25.892 seconds is a track record at the Silverstone circuit.
Vettel, who won from pole position last year in Canada to revive Ferrari's title hopes, will be hoping for the same on Sunday with world championship leader Hamilton, chasing a record equalling seventh win in Montreal, starting alongside him.
French driver Esteban Ocon will race for Force Indianext season after agreeing a multi-year deal, the Silverstone-based Formula One team said in a statement at the Brazilian Grand Prix on Thursday. Ocon replaces experienced German Nico Hulkenberg, who is moving to Renault, alongside Mexican Sergio Perez at a team co-owned by Indian tycoon Vijay Mallya and currently fourth in the championship. The 20-year-old is contracted long-term to Mercedes, Force India's engine provider, and made his debut this year with the lowly Manor team as a mid-season replacement for Indonesian Rio Haryanto.
The Briton lapped the Albert Park circuit in a searing one minute and 21.164 seconds to cross the line 0.664 seconds clear of Ferrari's Kimi Raikkonen.
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 front row lockout was a record-equalling 65th for champions Mercedes.
German Nico Rosberg eased to victory in a chaotic Belgian Formula One Grand Prix on Sunday.
Finland's Valtteri Bottas took pole position for the Russian Grand Prix on Saturday with Mercedes team mate and Formula One leader Lewis Hamilton having to settle for second place on the starting grid.
McLaren are set to replace Mexican Sergio Perez with Danish rookie Kevin Magnussen for next season, media reports said on Monday.
Team mate Sebastian Vettel was second fastest to complete the front-row sweep, with championship leader Lewis Hamilton third for Mercedes.
Media reports suggested the McLaren driver, whose wife is Japanese, was likely to announce at this weekend's Japanese Grand Prix that he would be leaving Formula One at the end of the year.
Formula One world champion Lewis Hamilton won the Hungarian Grand Prix from pole position for Mercedes on Sunday to go into the August break with a 24-point lead over Ferrari rival Sebastian Vettel.
The German, winner of the season's first two races, had been second before coming in for a fresh set of tyres while Hamilton won with one stop from pole position.
The win also set a record, one that Hamilton had previously shared with seven times champion Michael Schumacher, of 41 wins from pole position.
Australian Daniel Ricciardo won the Chinese Grand Prix for Red Bull on Sunday while Ferrari's championship leader Sebastian Vettel finished only eighth.
Ferrari's Sebastian Vettel qualified third, ahead of 21-year-old Monegasque team mate Charles Leclerc who was unable to repeat his Bahrain Grand Prix pole of two weeks ago.
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.
No woman has competed in Formula One since 1976 but organisers of the 'W Series' hope to provide a platform for them to develop skills before taking on the men further up the motorsport ladder. The idea of an all-female series is not new but has been controversial in the past, with top women racers adamant they want to compete against the men rather than be separated.
German Formula One driver Nico Hulkenberg will leave Force India and race for Renault in 2017 after signing a multi-year deal with the French manufacturer.
Max Verstappen won Red Bull's home Austrian Grand Prix on Sunday while Lewis Hamilton suffered his first race retirement since 2016 and lost the Formula One championship lead to Ferrari's Sebastian Vettel.
Lewis Hamilton pulverised the track record to claim pole position on Saturday ahead of a US Grand Prix that could secure the Mercedes driver's fourth Formula One world championship.
Formula One is set to test a new on-car display system championed by Lewis Hamilton's father Anthony aimed at helping fans to follow a race without having to take their eyes off the action.
The last time Kimi Raikkonen stood on top of a Formula One podium, Lewis Hamilton had just joined Mercedes with one championship to his name and Sebastian Vettel was riding high with Red Bull.
Formula One world championship leader Sebastian Vettel won the Bahrain Grand Prix for Ferrari on Sunday in the German's 200th race start.
Formula One's 'silly season' of rumour and speculation is heating up.
Mexican Sergio Perez qualified second for Force India but will drop five places due to an unscheduled gearbox change after he crashed in final practice on the Baku street circuit.
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.
Sahara Force India made it official that Mexican driver Sergio Perez will continue racing with the team in 2015 and beyond.