Marc Marquez dominated Friday's opening practice session for the British MotoGP to finish 0.388s ahead of Jorge Lorenzo.
On a brisk cold Friday morning at the Silverstone circuit, Lorenzo was the first rider out but struggled for early pace.
Marquez had no such troubles and was quick out of the blocks. A 2:05.179 to start things off was lowered to a 2:03.829 on board his RC213.
Dani Pedrosa slotted into second place, 0.882s down, with Lorenzo third.
Laying down more laps the Yamaha rider, who is leading the riders' championship by virtue of his five wins to Valentino Rossi's three, improved to second, 0.269s off Marquez's pace.
Andrea Iannone climbed to third place moments before the riders headed back into the pits to debrief and adjust settings.
Back out for a second run, Marquez increased his pace, lowering the benchmark to a 2:03.111.
Lorenzo also found some pace, shaving tenths of his time on back-to-back laps but it was only enough to reduce the deficit to 0.388s.
They went onto finish first and second with Rossi third after his late effort. The Italian was 0.856s off the pace.
Iannone dropped to fourth ahead of Andrea Dovizioso and Scott Redding.
01 Marc MARQUEZ Repsol Honda Team 2'03.111
02 Jorge LORENZO Movistar Yamaha MotoGP 2'03.499 0.388
03 Valentino ROSSI Movistar Yamaha MotoGP 2'03.967 0.856
04 Andrea IANNONE Ducati Team 2'04.072 0.961
05 Andrea DOVIZIOSO Ducati Team 2'04.115 1.004
06 Scott REDDING EG 0,0 Marc VDS 2'04.170 1.059
07 Bradley SMITH Monster Yamaha Tech 3 2'04.313 1.202
08 Dani PEDROSA Repsol Honda Team 2'04.347 1.236
09 Pol ESPARGARO Monster Yamaha Tech 3 2'04.364 1.253
10 Cal CRUTCHLOW LCR Honda 2'04.413 1.302
11 Danilo PETRUCCI Octo Pramac Racing 2'04.659 1.548
12 Maverick VIÑALES Team SUZUKI ECSTAR 2'04.728 1.617
13 Aleix ESPARGARO Team SUZUKI ECSTAR 2'04.816 1.705
14 Yonny HERNANDEZ Octo Pramac Racing 2'04.817 1.706
15 Eugene LAVERTY Aspar MotoGP Team 2'05.170 2.059
16 Alvaro BAUTISTA Aprilia Racing Team Gresini 2'05.290 2.179
17 Loris BAZ Forward Racing 2'05.403 2.292
18 Stefan BRADL Aprilia Racing Team Gresini 2'05.956 2.845
19 Nicky HAYDEN Aspar MotoGP Team 2'05.987 2.876
20 Alex DE ANGELIS E-Motion IodaRacing Team 2'06.045 2.934
21 Karel ABRAHAM AB Motoracing 2'06.154 3.043
22 Jack MILLER LCR Honda 2'06.478 3.367
23 Mike DI MEGLIO Avintia Racing 2'06.482 3.371
24 Hector BARBERA Avintia Racing 2'07.820 4.709
25 Claudio CORTI Forward Racing Yamaha 2'08.286 5.175