The LMP2 battle was being led by the Delta ADR-run G Drive-sponsored Oreca Nissan of John Martin, with the sister car of Tor Graves nearly a minute behind the Australian in eighth overall.
A sharp rain shower during the third hour shook things up with the LMP2 leader Martin spinning across the track on the exit of the final corner and hitting the pitwall. With most of the cars on slicks a full course yellow was declared, which was withdrawn a short time later as the strong wind blew the rain clouds away from the circuit.
There was also a lead change at the front of the field with the #1 Audi taking the lead. At the top of the hour, the #2 came into the pits with Duval handing over to Kristensen. The Dane pushed the car on the opening lap of his stint as the #1 car pitted with Fassler handing over to Andre Lotterer. The German emerged from the pits behind the #2 Audi but Kristenen found himself unsighted by an Aston Martin and Lotterer took advantage to sweep into the lead.
The #12 Rebellion Lola Toyota extended its lead in the LMP1 Privateer class, ending the third hour two laps ahead of the sister car with Frankie Cheng behind the wheel.
With the demise of the #26 G Drive Oreca, which re-joined the track after a lengthy pitstop to repair the damage caused by the accident, the lead reverted to the #25 Delta-ADR Oreca of Tor Graves, who held a 90 second advantage over the #24 Oak Racing Morgan Nissan of David Heinemeier Hansson.
In the fourth hour the typical English spring weather continued as the sun came out to bathe the Silverstone track in sunlight. The #1 Audi R18 of Andre Lotterer ended the fourth hour of the race in the same position the German began it, leading the race by 8.1 seconds ahead of the #2 Audi R18 e-tron of Tom Kristensen.
The two Toyotas were in third and fourth places with the #8 TS030 of Sebastien Buemi holding the final podium position one lap behind the leader. Alex Wurz was back behind the wheel of the #7 Toyota, 42 seconds adrift of Buemi.
The LMP1 Privateer leader was still Nicolas Prost in the #12 Rebellion Racing Lola-Toyota, two laps ahead of the #13 sister car which still had Frankie Cheng on driving duties.
The LMP2 lead also ended as it began an hour earlier with the #25 Delta ADR Oreca of John Martin leading the field ahead of the #24 Oak Racing Morgan-Nissan of Alex Brundle, who briefly led the race when the lad car pitted for fuel and tyres.
A short fuel stop in the fifth hour for the #1 Audi of Benoit Treluyer set up a great showdown between the two R18 e-tron quattros in the last hour of the race. The #2 Audi of McNish stopped at the top of the hour for fuel and tyres from the head of the field, which gave the lead to Treluyer who pitted a lap later. However the French driver completed a short 51 second stop to get back out on track in front of his Scottish teammate.