Marc Marquez won a battle with Jorge Lorenzo to secure the top spot in Friday morning MotoGP practice at Silverstone.
It took several attempts for championship leader Marquez to overcome the advantage Lorenzo held in the middle of the session.
But eventually he managed to outshine the Yamaha's 2m04.035s benchmark with a 2m03.816s lap on his Honda.
Local hero Cal Crutchlow made an encouraging start to the weekend as he took third, just 0.009 seconds down on Lorenzo's pace.
Two Hondas completed the top five, Marquez's team-mate Dani Pedrosa followed by Gresini's Alvaro Bautista.
Valentino Rossi was only sixth, 0.866s off the pace.
Nicky Hayden was the fastest Ducati in eighth place, one spot ahead of Briton Bradley Smith on the second Tech 3 entry.
Aleix Espargaro again led the CRT runners for Aspar, sitting in the top 10 for a long while before being pushed back to 11th.
Pos Rider Team/Bike Time Gap 1. Marc Marquez Honda 2m03.816s 2. Jorge Lorenzo Yamaha 2m04.035s +0.219s 3. Cal Crutchlow Tech 3 Yamaha 2m04.044s +0.228s 4. Dani Pedrosa Honda 2m04.431s +0.615s 5. Alvaro Bautista Gresini Honda 2m04.455s +0.639s 6. Valentino Rossi Yamaha 2m04.682s +0.866s 7. Stefan Bradl LCR Honda 2m04.838s +1.022s 8. Nicky Hayden Ducati 2m04.958s +1.142s 9. Bradley Smith Tech 3 Yamaha 2m05.108s +1.292s 10. Andrea Dovizioso Ducati 2m05.313s +1.497s 11. Aleix Espargaro Aspar Aprilia 2m05.525s +1.709s 12. Andrea Iannone Pramac Ducati 2m05.708s +1.892s 13. Hector Barbera Avintia FTR-Kawasaki 2m06.150s +2.334s 14. Randy de Puniet Aspar Aprilia 2m06.262s +2.446s 15. Colin Edwards Forward FTR-Kawasaki 2m06.305s +2.489s 16. Michele Pirro Pramac Ducati 2m06.319s +2.503s 17. Hiroshi Aoyama Avintia FTR-Kawasaki 2m06.691s +2.875s 18. Yonny Hernandez PBM Aprilia 2m06.796s +2.980s 19. Danilo Petrucci Ioda-Suter-BMW 2m07.100s +3.284s 20. Claudio Corti Forward FTR-Kawasaki 2m07.361s +3.545s 21. Michael Laverty PBM-Aprilia 2m07.525s +3.709s 22. Bryan Staring Gresini FTR-Honda 2m08.631s +4.815s 23. Lukas Pesek Ioda-Suter-BMW 2m11.036s +7.220s