Click here for full WEC qualifying results for the 6 Hours of the Circuit of the Americas
Porsche has converted its dominant free practice form into a front row lockout for the 6 Hours of the Circuit of the Americas, with Neel Jani improving late on to snatch pole from the sister machine.
Under the scorching Texan evening sun, Porsche lit up the Circuit of the Americas track with a lightning pace to leave the Audis and Toyotas trailing.
The #17 Porsche 919 Hybrid of Mark Webber, Timo Bernhard and Brendon Hartley appeared to have secured provisional pole but the winners at the Nurburgring were pipped by the #18 Porsche after Neel Jani improved his qualifying time by over 2.4 seconds as the chequered flag fell.
In truth, it appeared Jani's team may come under threat from the #8 Audi machine in third but such was the magnitude of the Swiss driver's increase it enabled them to leapfrog its team-mates into top spot.
WEC leaders #7 Audi R18 e-tron quattro of Marcel Fassler, Andre Lotterer and Benoit Treluyer will line-up fourth on the grid and ahead of the pair of Toyota machines, with defending WEC champions Anthony Davidson and Sebastien Buemi along with Kazuki Nakajima heading the third row. The Rebellion R-ONE AER duo edged out ByKolles CLM at the back of the LMP1 field.
In LMP2, the winners at Le Mans and the Nurburgring KCMG have put themselves in prime position for a third consecutive victory after taking pole position. The two G-Drive Ligier machines found significant gains to close the deficit to the Hong Kong squad but remained three-tenths off as qualifying came to an end.
However, post-qualifying race officials excluded the KCMG's lap times after the #47 Oreca as judged to be driving the car in the opposite direction of the track, after the team suffered a fault at the exit of the pitlane, red-flagging the session, as it brought the car back to the garage.
Race stewards have therefore clarified that the #26 G-Drive Racing Ligier has been promoted to pole position, with the #28 G-Drive sister car in second.
In the GTE Pro category the #99 Aston Martin driven by Richie Stanaway, Fernando Rees and Alex MacDowall claimed pole after pulling out a useful cushion of three-tenths over its nearest Porsche rival. Patrick Dempsey's Proton Porsche claimed a memorable first pole of the season at the team's home event in the GTE Am class.