JOTA Sport driver Harry Tincknell set the fastest lap of first practice for the European Le Mans Series 4 Hours of Silverstone.
Tincknell’s 1m 49.826s in the first half of the session was enough to hold the top spot after nearly an hour of clean running.
The session was placed under a full course yellow with 12 minutes to go after the #45 Ibanez Racing ORECA 03R stopped on track at Maggots.
The Gibson 015S of Tincknell was a second quicker than the Greaves Motorsport Gibson, driven by Jon Lancaster.
The two AF Corse ORECA 03s followed as the quickest of the Michelin runners, with Kirill Ladygin setting a 1m 51.354s in the #34 car and Nicolas Minassian submitting a 1m51.463s in the sister #32 machine.
In LMP3, Rob Garofall set the fastest lap in the #7 University of Bolton Ginetta-Nissan LMP3, with a 2m 04.852s in the second half of the session. The two Team LNT entries followed in second and third, while SVK by Speed Factory was the only team not to make an appearance.
Michele Rugolo (#81 AF Corse Ferrari 458 Italia) was the quickest of the LMGTE drivers, recording a 2m 02.428 early on. The sister #51 car was second on the timing sheets, while the #52 BMW Team MarcVDS BMW Z4 GTE of Andy Priaulx followed in third, a further half a second behind.
Heading the GTC ranks was the GT3-spec BMW Z4 of Thiriet by TDS Racing, which ended the session as the fourth quickest GT car overall after Franck Perera set a 2m 03.082s.
Marco Cioci (#63 AF Corse Ferrari 458 Italia GT3) recorded the second quickest time in class, 0.8 second behind the BMW, while fellow Italian Francesco Castellacci rounded out the top three in the #62 AF Corse Ferrari, over a second adrift of his team-mate.
The second free practice session for the 4 Hours of Silverstone takes place later today at 14:10 GMT.