As expected, Toyota hold the lead of the LMP1 field at midnight. Mike Conway kept the #7 TS050 in front at the start, leading from pole position during the first two hours before handing over to Kamui Kobayashi.
The two Toyotas briefly traded places later in the evening as a series of safety car periods brought the cars nose-to-tail. Kazuki Nakajima, taking over the #8 Toyota from Fernando Alonso, passed José María López in the #7 to take the lead. Lopez retook the lead shortly after only to surrender it with a trip through the gravel, but by hour 9 the two cars had swapped once again and the #7—with Conway back the wheel—resumed the lead.
Third place was long held by the #3 Rebellion which, in the hands of Gustavo Menezes, moved up from fourth on the grid and held off advances by Vitaly Petrov in the #11 SMP. However this came to an end later in the evening, when Thomas Laurent put the #3 in the wall and dropped two laps behind the two SMPs, with Egor Orudzhev’s #17 now the Russian team’s lead car.
There was trouble throughout the first ten hours for the remaining privateers. Bruno Senna picked up a puncture for the #1 Rebellion in the first hour and dropped to last in class, while the #4 ByKolles made eight difficult pitstops in the by hour 3. Later in the afternoon the #10 DragonSpeed entered the garage and has remained there since.
Signatech Alpine took an early lead as Nicholas Lapierre moved the #36 up from third to first off the line. But impressive pace from Jean-Éric Vergne and Dutch rookie Job van Uitert in the #26 G-Drive soon put the #36 under pressure, and Van Uitert took the class lead during his second stint.
The remaining class podium position changed hands several times during the first ten hours of the race. Initially Matthieu Vaxiviere held third in the #28 TDS Racing, but a strong opening stint from Giedo van der Garde took the position for the #29 Racing Team Nederland.
However, at hour 3 Nyck de Vries picked up a puncture during his stint in the #29. Anthony Davidson’s #31 DragonSpeed was briefly promoted to third, but was dropped down to fourth by the #38 Jackie Chan DC Racing.
Corvette took first blood in the Pro class with Antonio Garcia moving the #63 up from third to first. But over the course of the afternoon the Porsches hauled in the Corvette and the #92 took the lead with Kevin Estre at the wheel.
In the Am class, Matteo Cairoli in the #88 Dempsey-Proton Porsche converted pole into an early lead. But this was lost when he handed over to Satoshi Hoshino, who spun the #88 on the Mulsanne Straight and handed the lead to Giancarlo Fisichella in the #54 Spirit of Race Ferrari.
Hoshino would be involved in another, much heavier incident later in the evening as he collided with Marcel Fassler’s #64 Corvette, making the first official retirement of the race.