Hamilton, with soft Pirellis, edged teammate Valtteri Bottas into second place by 0.048s with a lap completed just following the hall way mark of this 90-minute session to ensure the positioning.
So great was Hamilton’s pace advantage that his timesheet-topping pace on the medium-compound Pirellis at the early stages of this session was quick enough to make sure of original location.
Max Verstappen was fastest for Red Bull-Honda, eight tenths slower compared to Hamilton, after picking to postpone his operation run to the closing stages of this session.
He place his period with fifteen minutes remaining, with spent more circulating on moderate rubber than everyone earlier in the session, before slotting ahead of new teammate Pierre Gasly from 0.042s.
Pre season pace-setter Ferrari had a dim session, lapping off the pace early in the session on medium-compound Pirellis, with Sebastian Vettel complaining over radio stations that something felt wrong in Turns 1 and 4.
Vettel afterwards straightened on softs and put into a lap of 1m23.473s to go fifth fastest, subsequently describing the vehicle as”still a bit wobbly” on radio stations.
Alfa Romeo newcomer Kimi Raikkonen was sixth fastest, a tenth behind Vettel, also ahead of the two Renaults of Nico Hulkenberg along with Daniel Ricciardo.
Charles Leclerc was down in ninth, 1.154s away, at the next Ferrari, with Haas driver Romain Grosjean rounding out the top 10.
Leclerc had a twist late at the session after losing it on the exit kerb coming out of this Turn 4 lefthander. He was able to continue.
Toro Rosso driver Daniil Kvyat was 11th quickest ahead of this next Haas of all Kevin Magnussen, with Racing Point’s Lance Stroll 13th.
McLaren driver Carlos Sainz also made it late to finish his performance run and was the penultimate driver to put his period.
It put him around 14 th place, ahead of Alfa Romeo driver Antonio Giovinazzi — that had a twist on the entrance to Turn 1-5 late at the session after touching the grass.
A Lex Albon has been 17th, one place behind the 2nd Racing point-of Sergio Perez, also followed his FP1 wreck with a run through the gravel Mid Season afterward a similar twist to Giovinazzi’s overdue on.
Lando Norris was 18th at the next McLaren, 1.7s clear of the fastest of this Williams — that of newcomer George Russell, that had a visit through the dirt at Flip 3 overdue on.
Robert Kubica was slowest, two-tenths supporting Russell, in yet another tricky session for Williams.