14.06.2004 Michael Schumacher and Rubens Barrichello finished 1st & 3rd in Canada but four hours after the end of the race, the Williams' disqualification promoting the Brazilian: Canadian GP report

Michael Schumacher and Rubens Barrichello finished first and third in the Canadian Grand Prix but four hours after the end of the race, the race result was changed promoting the Brazilian to second place.

The Williams of Ralf Schumacher (2nd,) Montoya (5th) and the Toyotas of Da Matta (8th) and Panis (10th) were disqualified. According to the Stewards, all these cars were found to have brake cooling ducts that did not comply to the dimensional requirements of the 2004 F1 technical regulations.

The new race order for the points scorers is thus, 1st, Michael Schumacher, 2nd Barichello, 3rd Button, 4th Fisichella, 5th Raikkonen, 6th Coulthard, 7th Glock, and 8th Heidfeld. The two teams involved accepted the Stewards' decision.

As the lights went out on the grid, Ralf Schumacher led the field away from pole position, followed by fellow front row man Button. Trulli made a good start but immediately retired the Renault with transmission failure. Behind them came Alonso, Montoya, with Michael Schumacher and Barrichello maintaining their sixth and seventh grid positions.

Further back, Klien tipped Coulthard into a spin and the Jaguar then collided with team-mate Webber who had to pit with a puncture. By lap 3, Ralf led by 2.3s with the same order maintained behind. Michael and Rubens, using different types of Bridgestone tyre were able to match the pace of the others comfortably, even though they had more fuel on board as the only front runners having a strategy based on two rather than the more common three refuelling stops.

On lap 7, while Ralf's lead was now 2.5s, Barrichello passed Raikkonen for sixth place and immediately set a race fastest lap. On lap 11, Coulthard pitted the McLaren as the first of the three stoppers to refuel.

Team mate Raikkonen came in on the next lap. Lap 13 and its Button and Montoya in the pits, so that Alonso was second ahead of Michael, who finally was able to push harder. Alonso inherited the lead on lap 15 when Ralf refuelled the Williams. He rejoined fourth behind the two Ferraris, as Button passed Da Matta to go fifth in the BAR-Honda.

Michael and Rubens headed the field for the first time when Alonso came in on lap 17, while Raikkonen was given a drive-through penalty for crossing the pit lane exit white line. Barrichello, carrying slightly less fuel than Michael made his first stop on lap 18, one lap ahead of his team-mate.

This put Ralf back in the lead ahead of Button, followed by Michael, Montoya and Barrichello.

Montoya led the trip to the pits for the second run on lap 30, with Button stopping on 31 promoting Michael to second. On lap 33, Ralf, 12 seconds ahead came down pit lane which left the two Ferraris running nose to tail at the front of the field. There then ensued a thrilling duel between the two red cars that had the crowd on the edge of its seat.

Barrichello tried all he could to pass his team-mate as they fought tooth and nail, but the Brazilian could not get by and following so close to the car in front, he eventually found his brakes were suffering.

He made his second and final pit stop on lap 44, with Michael coming in on lap 47, one lap ahead of his brother. Ralf then managed to regain second place, after Rubens lost precious seconds when he made a mistake at turn 8.

From lap 60 the order looked set with Michael leading his brother, Rubens third, Button fourth being chased by Montoya, Fisichella sixth after Raikkonen had to pit for a new steering wheel. On lap 63, Massa had a big accident at the hairpin but avoided serious injury,and from then on the order remained the same to the flag.

A few hours later, the Williams disqualification promoted Rubens to second place, giving the team another one-two finish.