| Date | Grandprix | Team | Winning Time | Leader Offset | Pos | Pts | Total |
| 06/03/2005 | Australia | Williams | 84:17.33 | +16.9 | 5 | 4 | 4 |
| 20/03/2005 | Malaysia | Williams | Retirement - a crash with Giancarlo Fisichella | 0 | 4 | ||
| 03/04/2005 | Bahrain | Williams | 1.35.589 | +74.70 | 6 | 3 | 7 |
| 24/04/2005 | San Marino | Williams | 87:41.921 | +83.20 | 7 | 2 | 9 |
| 08/05/2005 | Spain | Williams | 87:16.830 | +68.40 | 6 | 3 | 12 |
| 22/05/2005 | Monaco | Williams | 103:51.21 | +18.40 | 3 | 6 | 18 |
| 29/05/2005 | Europe | Williams | Retirement - first corner accident. | 0 | 18 | ||
| 12/06/2005 | Canada | Williams | 92:09.290 | +55.70 | 5 | 4 | 22 |
| 19/06/2005 | United States | Williams | Retirement - concern over their Michelin tyres. | 0 | 22 | ||
| 03/07/2005 | France | Williams | 91:22.233 | +2 lap | 12 | 0 | 22 |
| 10/07/2005 | Britain | Williams | 84:29.588 | +1 lap | 11 | 0 | 22 |
| 24/07/2005 | Germany | Williams | 86:28.599 | +12 lap | 19 | 0 | 22 |
| 31/07/2005 | Hungary | Williams | 97:25.552 | +1 lap | 7 | 2 | 24 |
| 21/08/2005 | Turkey | Williams | Retirement - a puncture. | 0 | 24 | ||
| 04/09/2005 | Italy | Williams | 74:28.659 | +1 lap | 14 | 0 | 24 |
| 11/09/2005 | Belgium | Williams | 90:01.295 | +69.16 | 4 | 5 | 29 |
| 25/09/2005 | Brazil | Williams | 89:20.574 | +26 lap | 16 | 0 | 29 |
| 09/10/2005 | Japan | Williams | 89:02.212 | +22.20 | 4 | 5 | 34 |
| 16/10/2005 | China | Williams | 99:53.618 | +36.80 | 7 | 2 | 36 |