By Phil Huff
August 19 2005
The first laps have been run at Istanbul, and the free practice sessions are over. Here's the rundown of all 25 drivers best lap time.
| Pos | Driver | Team | Engine | Car | Tyre | Best Lap | Gap |
| 1 | Zonta | Toyota | Toyota | TF105 | M | 1:25.583 | |
| 2 | de la Rosa | McLaren | Mercedes | MP4-20 | M | 1:26.196 | 0.613 |
| 3 | Montoya | McLaren | Mercedes | MP4-20 | M | 1:26.525 | 0.942 |
| 4 | Raikkonen | McLaren | Mercedes | MP4-20 | M | 1:27.274 | 1.691 |
| 5 | Button | BAR | Honda | BAR007 | M | 1:27.346 | 1.763 |
| 6 | Liuzzi | Red Bull | Cosworth | RB1 | M | 1:27.578 | 1.995 |
| 7 | Alonso | Renault | Renault | R25 | M | 1:27.579 | 1.996 |
| 8 | Fisichella | Renault | Renault | R25 | M | 1:27.673 | 2.090 |
| 9 | Trulli | Toyota | Toyota | TF105 | M | 1:27.964 | 2.381 |
| 10 | Sato | BAR | Honda | BAR007 | M | 1:28.081 | 2.498 |
| 11 | Webber | Williams | BMW | FW27 | M | 1:28.120 | 2.537 |
| 12 | Coulthard | Red Bull | Cosworth | RB1 | M | 1:28.235 | 2.652 |
| 13 | M Schumacher | Ferrari | Ferrari | F2005 | B | 1:28.293 | 2.710 |
| 14 | Villeneuve | Sauber | Petronas | C24 | M | 1:28.404 | 2.821 |
| 15 | Barrichello | Ferrari | Ferrari | F2005 | B | 1:28.460 | 2.877 |
| 16 | R Schumacher | Toyota | Toyota | TF105 | M | 1:28.641 | 3.058 |
| 17 | Massa | Sauber | Petronas | C24 | M | 1:28.681 | 3.098 |
| 18 | Klien | Red Bull | Cosworth | RB1 | M | 1:28.828 | 3.245 |
| 19 | Heidfeld | Williams | BMW | FW27 | M | 1:28.959 | 3.376 |
| 20 | Monteiro | Jordan | Toyota | EJ15 | B | 1:30.626 | 5.043 |
| 21 | Doornbos | Minardi | Cosworth | PS05 | B | 1:30.628 | 5.045 |
| 22 | Albers | Minardi | Cosworth | PS05 | B | 1:30.730 | 5.147 |
| 23 | Kiesa | Jordan | Toyota | EJ15 | B | 1:30.884 | 5.301 |
| 24 | Karthikeyan | Jordan | Toyota | EJ15 | B | 1:30.899 | 5.316 |
| 25 | Toccacelo | Minardi | Cosworth | PS05 | B | 1:32.813 | 7.230 |
