Photo: EPA
Australian Grand Prix, Melbourne, March 29
Resurrected from Honda's demise just over a fortnight previously, Brawn GP scored a historic one-two, becoming the first team to do so on their debut since Mercedes in 1954. Jenson Button led from start to finish while the appearance of the safety car late on resulted in the subsequent 'lie-gate' scandal and Lewis Hamilton's disqualification from third. Standings: 1 Button (Brawn GP) 10pts; 2 Rubens Barrichello (Brawn GP) 8; 3 Jarno Trulli (Toyota) 6; 4 Timo Glock (Toyota) 5.
Malaysian Grand Prix, Sepang, April 5
Horrendous monsoon conditions forced the abandonment of the race after 31 of the 56 scheduled laps, with half points being awarded. Button was the one singing in the rain as he made it back-to-back wins with BMW Sauber's Nick Heidfeld second and Timo Glock third. Standings: 1 Button 15pts; 2 Barrichello 10; 3 Trulli 8.5; 4 Glock 8.
Chinese Grand Prix, Shanghai, April 19
Brawn failed to have it all their own way in Shanghai as Red Bull Racing secured their first victory courtesy of Sebastian Vettel, with team-mate Mark Webber second. Button and Barrichello were forced to settle for third and fourth. Standings: 1 Button 21pts; 2 Barrichello 15; 3 Vettel 10; 4 Glock 10.
Bahrain Grand Prix, Sakhir, April 26
Starting one and two on the grid, Toyota should have secured their first win from 127 races, but it failed to materialise due to a gamble on fuel that backfired. Button took the honours for the third time in four races, with Vettel second ahead of Jarno Trulli. Standings: 1 Button 31pts; 2 Barrichello 19; 3 Vettel 18; 4 Trulli 14.5.
Spanish Grand Prix, Barcelona, May 10
Another one-two for Brawn GP, and another victory for Button as Barrichello fumed at the tactical change enjoyed by his team-mate a third of the way through the race. Webber was third and Vettel fourth. Standings: 1 Button 41pts; 2 Barrichello 27; 3 Vettel 23; 4 Webber 15.5.
Monaco Grand Prix, Monte-Carlo, May 24
A truly superb performance from pole for Button, who led home team-mate Barrichello. Ferrari returned to form with Kimi Raikkonen third and Felipe Massa fourth. Standings: 1 Button 51pts; 2 Barrichello 35; 3 Vettel 23; 4 Webber 19.5.
Turkish Grand Prix, Istanbul, June 7
Vettel dominated qualifying, edging Button into second on the grid, with Barrichello third. However, the Brazilian stalled on the line and then the young German made a mistake on the opening lap. Button needed no second invitation to make it six victories from seven. Standings: 1 Button 61pts; 2 Barrichello 35; 3 Vettel 29; 4 Webber 27.5.
British Grand Prix, Silverstone, June 21
The cool British climate wrecked Button's chances of another victory, the 29-year-old trailing home a distant sixth as he was unable to get enough heat into his tyres. Vettel again led home Webber in a Red Bull one-two, with Barrichello third. Standings: 1 Button 64pts; 2 Barrichello 41; 3 Vettel 39; 4 Webber 35.5.
German Grand Prix, Nurburgring, July 12
Webber secured a place in the record books with a win at the 130th attempt. No driver with a victory to their name has taken so long to claim a maiden triumph. Vettel was second with Button and Barrichello fifth and sixth. Standings: 1 Button 68pts; 2 Vettel 47; 3 Webber 45.5; 4 Barrichello 44.
Hungarian Grand Prix, Hungaroring, July 26
Hamilton's first win since China last year was overshadowed by Felipe Massa's horrific accident in qualifying which resulted in the Brazilian requiring life-saving surgery. Hamilton benefited from a problem involving pole-sitter Fernando Alonso's Renault as he lost a tyre on lap 13. Raikkonen grabbed second with Webber third, Button seventh and Barrichello 10th. Standings: 1 Button 70pts; 2 Webber 51.5; 3 Vettel 47; 4 Barrichello 44.
European Grand Prix, Valencia, August 23
Barrichello revived his championship challenge with a first win since the 2004 Chinese Grand Prix, taking advantage of a pit error by McLaren which cost Hamilton a second successive win. Button trailed home seventh with Vettel forced to retire with engine trouble. Standings: 1 Button 72pts; 2 Barrichello 54; 3 Webber 51.5; 4 Vettel 47.
Belgian Grand Prix, Spa-Francorchamps, August 30
A first-lap crash accounted for both Hamilton and Button, yet the latter's pursuers failed to take full advantage as Vettel was third behind Raikkonen, the Finn ending a run of 26 races without a win. Giancarlo Fisichella gave Force India their first podium with second with Barrichello seventh and Webber ninth. Standings: 1 Button 72pts; 2 Barrichello 56; 3 Vettel 53; 4 Webber 51.5.
Italian Grand Prix, Monza, September 13
Hamilton again crashed out, this time on the last lap as he hunted down Brawn's leading duo of Barrichello and Button, who went on to complete a one-two finish. Raikkonen took third on another wretched day for Red Bull, with Vettel only eighth and Webber spinning out on the opening lap. Standings: 1 Button 80pts; 2 Barrichello 66; 3 Vettel 54; 4 Webber 51.5.
Singapore Grand Prix, Singapore, September 27
Hamilton drove faultlessly under the Marina Bay street lights to claim his 11th career win ahead of Glock and Alonso. After qualifying a woeful 12th, Button benefited from a number of incidents to finish fifth, one place behind Vettel and one head of Barrichello, while Webber's slim title hopes ended as a brake failure sent him sliding into a barrier. Standings: 1 Button 84pts; 2 Barrichello 69; 3 Vettel 59; 4 Webber 51.5.
Japanese Grand Prix, Suzuka, October 4
Vettel kept his outside chances of winning the title alive with victory from pole ahead of Trulli and Hamilton. Button, who had struggled in qualifying, had to fight for a single point in eighth as a safety car period towards the end of the race bunched up the field. Barrichello was seventh to keep himself ahead of Vettel in second place in the standings. Standings: 1 Button 85pts; 2 Barrichello 71; 3 Vettel 69; 4 Webber 51.5.
Brazilian Grand Prix, Interlagos, October 18
Barrichello took pole position after a rain-affected qualifying which left Button down in 14th, but a dramatic opening lap with numerous incidents helped Button move quickly through the field. Webber eventually won the race with some aggressive overtaking helping Button finish fifth, more than enough to seal the title with Vettel fourth and Barrichello back in eighth. Standings: 1 Button 89pts; 2 Vettel 74; 3 Barrichello 72; 4 Webber 61.5; 5 Hamilton 49.
Red Bull driver Mark Webber won the FIA Formula One 2009 Grande Prêmio Petrobras do Brasil Saturday at Autódromo José Carlos Pace, São Paulo, Brazil. 

Interlagos (Autódromo José Carlos Pace)
Robert Kubica came in second for BMW Sauber, and Lewis Hamilton finished third for McLaren.

Webber's teammate Sebastian Vettel started from 15th place on the starting grid after he couldn't come up from the first qualification session, but finished 4th in front of his championship rival.

Brawn Grand Prix driver Jenson Button finished 5th to win his title. His team, representing the remnants of Honda Racing, also won the 2009 Constructors' championship after leading through the season.

The team's road to victory was not smooth — a scandal broke with the "double-decker diffuser" of the BGP001 car.  After the FIA declared them legal and other teams started to borrow the idea, Brawn sped up by collecting points on the way to the title.

Brawn GP, the winning constructor
Kimi Räikkönen (Ferrari) and Sébastien Buemi (Toro Rosso) dropped one place from the starting grid and finished behind Button.

Button's teammate and possible vice-champion Rubens Barrichello, who won pole position on his home soil after nearly three hours of a long rainy qualification session, had a tire puncture on the dying laps of the race and was forced to make an unscheduled third visit to his pit. He closed in the top eight.

This Brazil GP featured Japanese rookie driver, Kamui Kobayashi (Toyota), who replaced recovering Glock. In his first race this young driver qualified 11th and finished 10th in the race.

Adrian Sutil qualified 3rd for Force India, but was taken out by Jarno Trulli (Toyota) on the first lap.