Uitslag 1ste vrijdagtraining Sepang
 | Op de eerste vrijdagtraining op Sepang was Ferrari weer de snelste. Verrassend was wel de derde plek voor Anthony Davidson, testrijder bij BAR. |
| Pos. | Coureur | Team | Tijd |
| 1 | Michael Schumacher | Ferrari | 1:34.437 |
| 2 | Rubens Barrichello | Ferrari | 1:35.380 |
| 3 | Anthony Davidson | BAR Honda | 1:35.970 |
| 4 | Ricardo Zonta | Toyota | 1:36.147 |
| 5 | Ralf Schumacher | Williams | 1:36.229 |
| 6 | Kim Raikkonen | McLaren | 1:36.314 |
| 7 | MarkWebber | Jaguar | 1:36.478 |
| 8 | Juan Pablo Montoya | Williams | 1:36.606 |
| 9 | Jenson Button | BAR Honda | 1:37.018 |
| 10 | Fernando Alonso | Renault | 1:37.119 |
| 11 | David Coulthard | McLaren | 1:37.438 |
| 12 | Olivier Panis | Toyota | 1:37.590 |
| 13 | Jarno Trulli | Renault | 1:37.816 |
| 14 | Giancarlo Fisichella | Sauber | 1:37.995 |
| 15 | Takumo Sato | BAR Honda | 1:38.023 |
| 16 | Bjorn Wirdheim | Jaguar | 1:38.086 |
| 17 | Christian Klien | Jaguar | 1:38.554 |
| 18 | Cristiano Da Matta | Toyota | 1:38.734 |
| 19 | Timo Glock | Jordan | 1:38.788 |
| 20 | Nick Heidfeld | Jordan | 1:38.831 |
| 21 | Giorgio Pantano | Jordan | 1:39.860 |
| 22 | Gianmaria Bruni | Minardi | 1:41.149 |
| 23 | Zsolt Baumgartner | Minardi | 1:42.556 |
| 24 | Felippe Massa | Sauber | 1:42.718 |
| 25 | Bas Leinders | Minardi | 1:43.424 |