We recap what has happened so far in the 2009 Formula One season ahead of this weekend's German Grand Prix:

Australian Grand Prix - 29 March:

In a sensational start to the season, Brawn GP took first and second in Melbourne during their maiden race after emerging from the ashes of Honda Racing.

Britain's Jenson Button won only his second GP in 154 starts, controlling the race from the outset, with veteran team-mate Rubens Barrichello runner-up.

World champion Lewis Hamilton came third but was later disqualified over an incident involving Toyota's Jarno Trulli, who had been demoted from third to 12th but was subsequently reinstated. Timo Glock was fourth, Fernando Alonso finished fifth and Nico Rosberg came sixth.

Standings: Button 10pts, Barrichello 8, Trulli 6.

Malaysian Grand Prix - 5 April:

Sepang will be best remembered for McLaren suspending sporting director Dave Ryan and then Hamilton making an emotional apology after being accused of lying over the Trulli incident in Melbourne.

On the race front, Button made it two-out-of-two, winning a Grand Prix that began at 5pm and was abandoned after 32 laps when a ferocious storm lashed the circuit and daylight faded. Half points were awarded only as the race had run less than three-quarter distance.

Nick Heidfeld in his BMW Sauber came second,Glock in a Toyota was third with his teammate Jarno Trulli fourth. As in Melbourne, Ferrari failed to pick up a point for their worst start to a season since 1992.

Standings: Button 15pts, Barrichello 10, Trulli 8.5.

Chinese Grand Prix - 19 April:

Germany's Sebastian Vettel gave Red Bull a first victory, thriving in the torrential rain of Shanghai. The 21-year-old German came home ahead of teammate Mark Webber of Australia in a one-two finish.

The result ended the early-season domination of the Brawn GP team as Button finished third ahead of Barrichello with the race coming at the end of a week when the team's controversial diffuser was declared legal by the FIA.

Heikki Kovalainen and Hamilton finished fifth and sixth respectively in the team's first race since Ron Dennis stepped down as chief executive.

Ferrari again failed to score for the third time this season, their worst start to a racing year since 1981 with Felipe Massa retiring with mechanical problems and Kimi Raikkonen coming home in a midfield position.

Standings: Button 21pts, Barrichello 15, Vettel 10

Bahrain Grand Prix - 26 April:

Button claimed his third win in four races this year and the fourth of his career.

The 29-year-old came home 7.2 seconds ahead of Vettel. Trulli, who started from pole for Toyota, finished third ahead of Hamilton in his McLaren Mercedes and Barrichello.

Next came Raikkonen, who finally claimed points for Ferrari, so ending their hugely-disappointing start to this season and avoiding the ignominy of recording their worst start in history.

Standings: Button 31pts, 2. Barrichello 19, 3. Vettel 18

Spanish Grand Prix - 10 May:

Button led home Barrichello in a Brawn GP one-two as the team swept aside all doubts about their durability as championship contenders with a dominant performance in Barcelona.

Webber came home third to maintain Red Bull's competitive form ahead of team-mate Vettel, who was fourth, Spaniard Fernando Alonso in his Renault and Massa, who slowly rolled over the line as his Ferrari ran out of fuel on the final lap. Hamilton finished just outside the points.

Standings: Button 41pts, Barrichello 27, Vettel 23

Monaco Grand Prix - 24 May:

Button made it five wins out of six races and became the first driver since Michael Schumacher in 2006 to complete a hat-trick of consecutive Grand Prix wins. Starting from his fourth pole position of this fairy-tale season and the seventh of his career, Button pulled clear at the start and, apart from brief interruptions due to pit-stops, led all the way with a supreme performance of mature and well-judged racing.

Standings: Button 51pts, Barrichello 35, Vettel 23

Turkish Grand Prix - 7 June:

Button extended his lead in the championship to more than 20 points when he cruised to an unexpectedly comfortable victory in Istanbul.

The Englishman clinched his sixth win in seven races after being gifted the lead on the opening lap, when pole-sitting Vettel ran off while leading.

Vettel battled to come home third on the rear wheels of Red Bull team-mate Webber who came home second, 20 seconds behind Button.

Trulli, Nico Rosberg for Williams and Massa were in the next three places.

Barrichello stalled and then collided with several cars as he tried to recover his position before dropping out with gearbox problems.

Standings: Button 61pts, 2. Barrichello 35, 3. Vettel 29.0

British Grand Prix - 21 June:

Red Bull's rising star Sebastian Vettel led from start to finish to win ahead of his Australian team-mate Mark Webber.

It was the 21-year-old German's first victory in dry weather conditions after his two previous triumphs in torrential rain in Italy last year and China earlier this season.

Webber came home second ahead of Brazilians veteran Rubens Barrichello in a Brawn and his compatriot, Brazilian Felipe Massa of Ferrari.

German Nico Rosberg finished fifth for Williams ahead of world championship leader Jenson Button in his Brawn, Finn Kimi Raikkonen of Ferrari and German Timo Glock for Toyota.

Vettel's win cut Button's lead in the drivers championship to just 3 points and confirmed that the Red Bull team are set to mount a major challenge to the previously dominant Brawn team in the rest of the season.

Standings: Button 64pts, 2. Barichello 41, 3. Vettel 39

Still to race:

German Grand Prix - July 12
Hungarian Grand Prix - July 26
European Grand Prix - August 23
Belgian Grand Prix - August 30
Italian Grand Prix - Sept 13
Singapore Grand Prix - Sept 27
Japanese Grand Prix - Oct 4
Brazilian Grand Prix - Oct 18
Abu Dhabi Grand Prix - Nov 1