Repsol Honda rider Casey Stoner has ended the first free practice session of the weekend at Silverstone with the fastest time under cloudy skies.
Stoner topped the session with a fastest time of 2'03.748 ahead of San Carlo Honda rider Marco Simoncelli in second. Reigning champion Jorge Lorenzo set the third fastest time.
Valentino Rossi posted the 12th fastest time during his first time around Silverstone on a MotoGP bike.
Brit Cal Crutchlow placed as high as second through out the session, but was pushed down to sixth by the end.
1. Casey Stoner AUS Repsol Honda Team 2m 3.748s
2. Marco Simoncelli ITA San Carlo Honda Gresini 2m 4.407s
3. Jorge Lorenzo ESP Yamaha Factory Racing 2m 4.756s
4. Nicky Hayden USA Ducati Marlboro Team 2m 4.778s
5. Andrea Dovizioso ITA Repsol Honda Team 2m 4.910s
6. Cal Crutchlow GBR Monster Yamaha Tech 3 2m 5.007s
7. Ben Spies USA Yamaha Factory Racing 2m 5.130s
8. Hector Barbera ESP Mapfre Aspar Team 2m 6.158s
9. Alvaro Bautista ESP Rizla Suzuki MotoGP 2m 6.274s
10. Randy de Puniet FRA Pramac Racing Team 2m 6.573s
11. Karel Abraham CZE Cardion AB Motoracing 2m 6.774s
12. Valentino Rossi ITA Ducati Marlboro Team 2m 7.075s
13. Hiroshi Aoyama JPN San Carlo Honda Gresini 2m 7.459s
14. Toni Elias ESP LCR Honda MotoGP 2m 7.616s
15. Loris Capirossi ITA Pramac Racing Team 2m 8.225s
16. Colin Edwards USA Monster Yamaha Tech 3 2m 9.310s