* Lap 1: At the start of the race David Coulthard gets away better than Juan-Pablo Montoya and takes the lead at Ste Devote. Michael Schumacher is third fastest with Ralf Schumacher fourth ahead of a fast starting Jarno Trulli and Kimi Raikkonen. Rubens Barrichello drops from fifth on the grid to seventh while Jenson Button jumps the start, lifts off and then is unable to put the power down again and so drops from eighth on the grid to 17th. Jacques Villeneuve fails to get off the grid and is pushed into the pit lane and starts the race from there a lap behind.

* Lap 3: The top three runners all set fastest laps as they close to within a few tenths of each other. It is clear that Coulthard is holding everyone up as Ralf Schumacher is able to close up to the top three. A gap develops to Trulli, whom is fighting to keep Raikkonen and Barrichello behind him. Behind them are two Toyotas with Mika Salo leading Allan McNish and the top 10 is completed by Heinz-Harald Frentzen's Arrows.

* Lap 6: Button goes to the pits for a drive through penalty for jumping the start and drops from 17th to 21st.

* Lap 11: The top four have run together with Coulthard dictating the pace. At the back of the field Alex Yoong makes a mistake at the Grand Hairpin and is overtaken by Button for 20th place.

* Lap 13: Coulthard sets the fastest lap of the race and takes his lead to a second for the first time.

* Lap 16: McNish makes a mistake at Ste Devote and slides into the barrier at the exit of the corner. This promotes Frentzen to ninth and Fisichella to 10th.

* Lap 19: Salo is overtaken by Frentzen for eighth place. Fisichella is right with them and has to lift off and as a result he falls behind his team mate Takuma Sato.

* Lap 20: Frentzen sets the fastest lap of the race.

* Lap 21: Salo pits and falls back from ninth place to 19th.

* Lap 23: Sato makes a mistake in the tunnel and crashes into the outside wall at high speed. Fisichella is fortunate to avoid hitting his team mate and debris from the car.

* Lap 26: Coulthard is still just ahead of Montoya, Michael and Ralf Schumacher. There is then a big gap back to Trulli, Raikkonen and Barrichello. At the tail of the field Yoong pits but remains in 19th.

* Lap 28: The battle between Enrique Bernoldi and Felipe Massa for 10th place ends with Bernoldi overtaking the Sauber on the start-finish straight. At Ste Devote Massa brakes late and runs into the back of the Arrows and both cars go off into the escape road. Bernoldi rejoins in 16th while Massa pits for a new nose.

* Lap 29: Mark Webber, running 12th, pits and drops to 17th. On the same lap Yoong hits the wall and retires.

* Lap 30: Smoke begins to be seen from time to time from the back of Coulthard's McLaren. Montoya is still behind him holding off the Schumacher brothers.

* Lap 32: Massa is given a drive-through penalty for the accident with Bernoldi.

* Lap 37: At the front Coulthard's car has stopped smoking and he begins to build up a lead as the mid-race pits stops begin as Button pits and falls from 14th to 17th.

* Lap 40: As the leaders start making their way through traffic, Barrichello runs into the back of Raikkonen at the chicane, damaging the front of his car and the rear of the McLaren. Both men pit at the end of the lap. Raikkonen rejoins some laps later after his rear wing has been repaired but retires after one exploratory lap. Barrichello is given a 10-second stop-go penalty for the incident.

* Lap 41: Bernoldi pits but there is a problem and he is delayed, dropping from 14th to 18th.

* Lap 42: Barrichello comes into the pits for his penalty and accelerates away too quickly and earns himself a drive-through penalty as well. Eddie Irvine, who is running 12th, pits and drops back to 16th position.

* Lap 43: Trulli is the first of the top six to pit. He falls from fifth to seventh.

* Lap 44: Coulthard's lead over Montoya has increased to eight seconds. Michael Schumacher, who is stuck behind the Colombian, pits and so drops behind his brother. He gets out before the arrival of fifth-placed Frentzen. In the midfield Nick Heidfeld pits and Barrichello loses more time with his drive-through penalty. He is now back to 12th.

* Lap 46: Coulthard's lead is up to nearly 12 seconds but Michael Schumacher is lapping quickly and sets the fastest lap of the race. Frentzen pits and falls from fifth place to seventh. Further back Salo overtakes Pedro de la Rosa to move to ninth place.

* Lap 47: Montoya lets Ralf Schumacher pass him. Montoya's engines fails soon afterwards and he drops out. Frentzen returns to the pits for fuel because of malfunction in the refuelling equipment. Thanks to Montoya's demise is able to rejoin in sixth place, despite having made two stops. Villeneuve disappears from the race having spent the afternoon a lap behind everyone.

* Lap 48: Panis drops behind both Salo and Barrichello while de la Rosa pits and so Salo emerges in seventh position.

* Lap 50: Ralf Schumacher, who is 17 seconds behind Coulthard, pits and falls behind his brother.

* Lap 51: Coulthard pits but is able to get out ahead of Michael Schumacher. Ralf is third with a huge gap back to Fisichella, Trulli and Frentzen. A lap down is Salo ahead of Barrichello. Webber overtakes Panis for ninth place, while Button closes in behind them.

* Lap 52: Fisichella pits and falls from fourth to fifth. Further back Panis and Button collide at Ste Devote. Both men retire.

* Lap 53: The race has settled down again with Coulthard able to hold off Schumacher's Ferrari. There is a 20-second gap back to Ralf Schumacher and another 20 seconds to Trulli with Fisichella behind him. Frentzen is sixth, the last unlapped runner, while Salo and Barrichello fight a lively battle for seventh.

* Lap 60: Little has changed but Salo pits and drops behind Barrichello.

* Lap 62: Bernoldi is given a drive-through penalty for cutting the chicane.

* Lap 63: Webber comes in for his second stop and falls from ninth to 12th.

* Lap 64: Massa goes straight off at Ste Devote as the result of what appears to be a brake failure. He hits the wall very hard head-on but the impact is dissipated by the barriers and although shaken, Felipe is unhurt.

* Lap 65: Ralf Schumacher has a problem with his left rear tyre and goes into the pits for new rubber. He retains third place.

* Lap 70: Salo suffers a problem with his right front wheel and crashes at Massanet. This promotes Heidfeld to seventh place.