2005 Italian Grand Prix

Kimi Räikkönen set the fastest time in qualifying in his McLaren-Mercedes, but received a 10-place grid penalty for changing his engine, demoting him to 11th on the grid and giving pole to teammate Juan Pablo Montoya.

Montoya led every lap, winning by 2.5 seconds from the Renault of Fernando Alonso, with Giancarlo Fisichella third in the other Renault. Räikkönen climbed through the field to finish fourth, ahead of Jarno Trulli, Ralf Schumacher, Antônio Pizzonia and Jenson Button. Räikkönen would have had a chance of winning with a one-stop strategy, but a deflated tyre forced him to make a second pit stop. Rubens Barrichello also had the same problem later in the day, and Montoya was lucky to finish in the lead, as his left rear tyre began to cut with several laps remaining.

Alonso extended his lead over Räikkönen in the Drivers' Championship to 27 points, 103 to 76, with Michael Schumacher third on 55 and Montoya fourth on 50. Mathematically, the championship was now a two-horse race between Alonso and Räikkönen. Renault retained an eight-point lead over McLaren-Mercedes in the Constructors' Championship, 144 to 136, Ferrari remaining in third on 86 and Toyota fourth on 78.

There were no retirements during the race, a feat that had not been achieved in Formula One with a full field since the 1961 Dutch Grand Prix, and would not be achieved again until the 2011 European Grand Prix. The 2005 United States Grand Prix is also considered to have had no retirements; however, only six cars started due to problems with the supply of Michelin tyres, which led to the mass withdrawal of all teams running on those tyres due to safety issues. Pizzonia replaced Nick Heidfeld for the rest of the season onwards.

• Bold text indicates who still has a theoretical chance of becoming World Champion.

Drivers' Championship standings Pos Driver Points 1 Fernando Alonso 103 2 Kimi Räikkönen 76 3 Michael Schumacher 55 4 Juan Pablo Montoya 50 5 Jarno Trulli 43 Source: [4]

Constructors' Championship standings Pos Constructor Points 1 Renault 144 2 McLaren-Mercedes 136 3 Ferrari 86 4 Toyota 78 5 Williams-BMW 54 Source: [4]

• Note: Only the top five positions are included for both sets of standings.