Bernhard lapped the Sakhir track in 1m42.800s, just 0.017s ahead of the leading Audi.

Andre Lotterer, who shares his Audi R18 e-tron quattro with Marcel Fassler and Benoit Treluyer, was second fastest with a lap of 1m42.817s.

The second Audi of Lucas di Grassi, Loic Duval and Oliver Jarvis was third, ahead of the Porsche of Neel Jani, Romain Dumas and Marc Lieb – each six tenths off the pace.

As usual, the Toyotas weren’t in the same league as its German rivals, and its cars were 2.5s and 2.6s off the pace respectively.

In LMP2, the Signatech Alpine-Nissan of Nelson Panciatici, Paul-Loup Chatin and Tom Dillmann led the way from the G-Drive Ligier-Nissan of Sam Bird, Roman Rusinov and Julien Canal.

In GTE Pro, Ferrari held sway with the Gianmaria Bruni and Toni Villander 458 Italia heading the sister AF Corse car of Davide Rigon and James Calado. Porsche led the chase with the 911 RSR of Patrick Pilet and Frederic Makowiecki.

The Aston Martin Vantage V8 of Pedro Lamy, Paul Dalla Lana and Mathias Lauda led the way in GTE Am.

The relatively uneventful session was interrupted by full course yellow flags twice: the first time to retrieve and replace a damaged bollard at Turn 10, the second for debris at the final corner.

There is a second practice under floodlights at 1930 local time.

Pos	Driver	Team	Car	Time	Gap	Laps
1	Mark Webber  Brendon Hartley  Timo Bernhard	Porsche Team	Porsche 919 Hybrid	1:42.800	1:42.800	37
2	Andre Lotterer  Benoit Tréluyer  Marcel Fassler	Audi Sport Team Joest	Audi R18 e-tron quattro '15	1:42.817	+0.017	34
3	Loic Duval  Oliver Jarvis  Lucas di Grassi	Audi Sport Team Joest	Audi R18 e-tron quattro '15	1:43.403	+0.603	37
4	Marc Lieb  Romain Dumas  Neel Jani	Porsche Team	Porsche 919 Hybrid	1:43.454	+0.654	37
5	Anthony Davidson  Kazuki Nakajima  Sébastien Buemi	Toyota Racing	Toyota TS040 Hybrid	1:45.371	+2.571	32
6	Alexander Wurz  Mike Conway  Stéphane Sarrazin	Toyota Racing	Toyota TS040 Hybrid	1:45.485	+2.685	28
7	Alexandre Imperatori  Mathéo Tuscher   Dominik Kraihamer	Rebellion Racing	Rebellion R-One	1:50.149	+7.349	29
8	Mathias Beche  Nicolas Prost	Rebellion Racing	Rebellion R-One	1:50.150	+7.350	25
9	Nelson Panciatici  Paul-Loup Chatin  Tom Dillmann	Signatech Alpine	Alpine A450b	1:52.054	+9.254	40
10	Pierre Kaffer  Simon Trummer	Team ByKolles	CLM P1/01	1:52.065	+9.265	14
11	Roman Rusinov  Sam Bird  Julien Canal	G-Drive Racing	Ligier JS P2	1:52.086	+9.286	34
12	Jonny Kane  Nick Leventis  Danny Watts	Strakka Racing	Gibson 015S	1:52.686	+9.886	34
13	Matthew Howson  Nick Tandy  Richard Bradley	KCMG	ORECA 05	1:52.850	+10.050	29
14	Devi Markozov   Nicolas Minassian  Mikhail Aleshin	AF Racing	BR Engineering BR01	1:53.164	+10.364	32
15	Oliver Webb  Chris Cumming  Pierre Ragues	Team SARD Morand	Morgan LMP2 Evo '15	1:53.374	+10.574	36
16	Ed Brown  Jon Fogarty  Johannes van Overbeek	Extreme Speed Motorsports	Ligier JS P2	1:53.655	+10.855	35
17	Pipo Derani  Gustavo Yacaman  Ricardo Gonzalez	G-Drive Racing	Ligier JS P2	1:54.370	+11.570	37
18	David Heinemeier Hansson Ryan Dalziel  Scott Sharp	Extreme Speed Motorsports	Ligier JS P2	1:54.537	+11.737	36
19	Toni Vilander  Gianmaria Bruni	AF Corse	Ferrari F458 Italia	2:00.135	+17.335	34
20	Davide Rigon  James Calado	AF Corse	Ferrari F458 Italia	2:00.505	+17.705	33
21	Frédéric Makowiecki  Patrick Pilet	Porsche Team Manthey	Porsche 911 RSR	2:00.774	+17.974	32
22	Pedro Lamy  Paul Dalla Lana  Mathias Lauda	Aston Martin Racing	Aston Martin Vantage V8	2:01.280	+18.480	33
23	Jonathan Adam  Darren Turner	Aston Martin Racing	Aston Martin Vantage V8	2:01.404	+18.604	38
24	Gianluca Roda  Kristian Poulsen  Paolo Ruberti	Larbre Compétition	Chevrolet Corvette C7.R	2:01.417	+18.617	33
25	Richard Lietz  Michael Christensen	Porsche Team Manthey	Porsche 911 RSR	2:01.932	+19.132	30
26	Alex MacDowall  Richie Stanaway  Fernando Rees	Aston Martin Racing	Aston Martin Vantage V8	2:01.933	+19.133	36
27	Aleksey Basov  Andrea Bertolini  Viktor Shaitar	SMP Racing	Ferrari F458 Italia	2:02.124	+19.324	31
28	Nicki Thiim  Christoffer Nygaard  Marco Sørensen	Aston Martin Racing	Aston Martin Vantage V8	2:02.152	+19.352	36
29	Christian Ried  Patrick Long  Marco Seefried	Dempsey Racing - Proton	Porsche 911 RSR	2:02.363	+19.563	33
30	Roald Goethe  Francesco Castellacci  Stuart Hall	Aston Martin Racing	Aston Martin Vantage V8	2:02.921	+20.121	34
31	Emmanuel Collard  Matteo Cressoni  François Perrodo	AF Corse	Ferrari F458 Italia	2:04.367	+21.567	35
32	Khaled Al Qubaisi  Klaus Bachler  Marco Mapelli	Abu Dhabi-Proton Racing	Porsche 911 RSR	2:04.672	+21.872	33