2015 6 Hours of Circuit of the Americas
The 2015 6 Hours of Circuit of the Americas was an endurance sports car racing event held at the Circuit of the Americas, Austin, US, on 17–19 September 2015, and served as the fifth round of the 2015 FIA World Endurance Championship season. Porsche's Timo Bernhard, Brendon Hartley and Mark Webber won the race driving the No. 17 Porsche 919 Hybrid car.
Qualifying
Qualifying result
Pole position winners in each class are marked in bold.| Pos | Class | Team | Average Time | Grid |
| 1 | LMP1 | No. 18 Porsche Team | 1:46.211 | 1 |
| 2 | LMP1 | No. 17 Porsche Team | 1:46.375 | 2 |
| 3 | LMP1 | No. 8 Audi Sport Team Joest | 1:47.538 | 3 |
| 4 | LMP1 | No. 7 Audi Sport Team Joest | 1:47.898 | 4 |
| 5 | LMP1 | No. 1 Toyota Racing | 1:48.990 | 5 |
| 6 | LMP1 | No. 2 Toyota Racing | 1:49.176 | 6 |
| 7 | LMP1 | No. 12 Rebellion Racing | 1:53.950 | 7 |
| 8 | LMP1 | No. 13 Rebellion Racing | 1:54.506 | 8 |
| 9 | LMP1 | No. 4 Team ByKolles | 1:55.794 | 9 |
| 10 | LMP2 | No. 26 G-Drive Racing | 1:57.148 | 10 |
| 11 | LMP2 | No. 28 G-Drive Racing | 1:57.474 | 11 |
| 12 | LMP2 | No. 30 Extreme Speed Motorsports | 1:57.621 | 12 |
| 13 | LMP2 | No. 43 Team SARD Morand | 1:58.109 | 13 |
| 14 | LMP2 | No. 42 Strakka Racing | 1:59.749 | 14 |
| 15 | LMP2 | No. 31 Extreme Speed Motorsports | 2:01.480 | 15 |
| 16 | LMGTE Pro | No. 99 Aston Martin Racing V8 | 2:05.872 | 18 |
| 17 | LMGTE Pro | No. 91 Porsche Team Manthey | 2:06.134 | 19 |
| 18 | LMGTE Pro | No. 97 Aston Martin Racing | 2:06.272 | 20 |
| 19 | LMGTE Pro | No. 95 Aston Martin Racing | 2:06.294 | 21 |
| 20 | LMGTE Pro | No. 92 Porsche Team Manthey | 2:06.363 | 22 |
| 21 | LMGTE Pro | No. 51 AF Corse | 2:06.786 | 23 |
| 22 | LMGTE Pro | No. 71 AF Corse | 2:06.975 | 24 |
| 23 | LMGTE Am | No. 77 Dempsey Racing-Proton | 2:08.085 | 25 |
| 24 | LMGTE Am | No. 96 Aston Martin Racing | 2:08.264 | 26 |
| 25 | LMGTE Am | No. 83 AF Corse | 2:08.332 | 27 |
| 26 | LMGTE Am | No. 98 Aston Martin Racing | 2:08.440 | 28 |
| 27 | LMGTE Am | No. 72 SMP Racing | 2:08.442 | 29 |
| 28 | LMGTE Am | No. 50 Larbre Compétition | 2:08.802 | 30 |
| 29 | LMP2 | No. 36 Signatech Alpine | 1:57.860 | 16 |
| – | LMP2 | No. 47 KCMG | No Time | 17 |
| – | LMGTE Am | No. 88 Abu Dhabi-Proton Racing | No Time | 31 |
– Only one driver of the No. 36 Signatech Alpine set a lap time.
– The No. 47 KCMG had its qualifying lap time deleted due to driving the car in the opposite direction of the track, but was allowed to start from the rear of the LMP grid.
Race
Race result
Class winners in bold.| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
| Pos | Class | No | Team | Drivers | Engine | Tyre | Laps |
| 1 | LMP1 | 17 |  Porsche Team | Timo Bernhard Brendon Hartley Mark Webber | Porsche 919 Hybrid | 185 | |
| 1 | LMP1 | 17 | Porsche Team | Timo Bernhard Brendon Hartley Mark Webber | Porsche 2.0 L Turbo V4 | 185 | |
| 2 | LMP1 | 7 | Audi Sport Team Joest | André Lotterer Marcel Fässler Benoît Tréluyer | Audi R18 e-tron quattro | 185 | |
| 2 | LMP1 | 7 | Audi Sport Team Joest | André Lotterer Marcel Fässler Benoît Tréluyer | Audi TDI 4.0 L Turbo Diesel V6 | 185 | |
| 3 | LMP1 | 8 | Audi Sport Team Joest | Loïc Duval Lucas di Grassi Oliver Jarvis | Audi R18 e-tron quattro | 184 | |
| 3 | LMP1 | 8 | Audi Sport Team Joest | Loïc Duval Lucas di Grassi Oliver Jarvis | Audi TDI 4.0 L Turbo Diesel V6 | 184 | |
| 4 | LMP1 | 1 |  Toyota Racing | Anthony Davidson Sébastien Buemi Kazuki Nakajima | Toyota TS040 Hybrid | 183 | |
| 4 | LMP1 | 1 | Toyota Racing | Anthony Davidson Sébastien Buemi Kazuki Nakajima | Toyota 3.7 L V8 | 183 | |
| 5 | LMP2 | 26 |  G-Drive Racing | Roman Rusinov Julien Canal Sam Bird | Ligier JS P2 | 170 | |
| 5 | LMP2 | 26 | G-Drive Racing | Roman Rusinov Julien Canal Sam Bird | Nissan VK45DE 4.5 L V8 | 170 | |
| 6 | LMP2 | 47 |  KCMG | Matthew Howson Richard Bradley Nicolas Lapierre | Oreca 05 | 170 | |
| 6 | LMP2 | 47 | KCMG | Matthew Howson Richard Bradley Nicolas Lapierre | Nissan VK45DE 4.5 L V8 | 170 | |
| 7 | LMP2 | 28 | G-Drive Racing |  Gustavo Yacamán Ricardo González Pipo Derani | Ligier JS P2 | 169 | |
| 7 | LMP2 | 28 | G-Drive Racing | Gustavo Yacamán Ricardo González Pipo Derani | Nissan VK45DE 4.5 L V8 | 169 | |
| 8 | LMP1 | 4 |  Team ByKolles | Simon Trummer Pierre Kaffer | CLM P1/01 | 169 | |
| 8 | LMP1 | 4 | Team ByKolles | Simon Trummer Pierre Kaffer | AER P60 2.4 L Turbo V6 | 169 | |
| 9 | LMP2 | 30 |  Extreme Speed Motorsports | Scott Sharp Ryan Dalziel David Heinemeier Hansson | Ligier JS P2 | 169 | |
| 9 | LMP2 | 30 | Extreme Speed Motorsports | Scott Sharp Ryan Dalziel David Heinemeier Hansson | Honda HR28TT 2.8 L Turbo V6 | 169 | |
| 10 | LMP2 | 43 | Team SARD Morand | Oliver Webb Pierre Ragues Archie Hamilton | Morgan LMP2 Evo | 169 | |
| 10 | LMP2 | 43 | Team SARD Morand | Oliver Webb Pierre Ragues Archie Hamilton | SARD 3.6 L V8 | 169 | |
| 11 | LMP2 | 36 | Signatech Alpine | Nelson Panciatici Paul-Loup Chatin Vincent Capillaire | Alpine A450b | 169 | |
| 11 | LMP2 | 36 | Signatech Alpine | Nelson Panciatici Paul-Loup Chatin Vincent Capillaire | Nissan VK45DE 4.5 L V8 | 169 | |
| 12 | LMP1 | 18 | Porsche Team | Marc Lieb Romain Dumas Neel Jani | Porsche 919 Hybrid | 168 | |
| 12 | LMP1 | 18 | Porsche Team | Marc Lieb Romain Dumas Neel Jani | Porsche 2.0 L Turbo V4 | 168 | |
| 13 | LMP2 | 42 | Strakka Racing | Nick Leventis Jonny Kane Danny Watts | Gibson 015S | 166 | |
| 13 | LMP2 | 42 | Strakka Racing | Nick Leventis Jonny Kane Danny Watts | Nissan VK45DE 4.5 L V8 | 166 | |
| 14 | LMGTE Pro | 91 | Porsche Team Manthey | Richard Lietz Michael Christensen | Porsche 911 RSR | 162 | |
| 14 | LMGTE Pro | 91 | Porsche Team Manthey | Richard Lietz Michael Christensen | Porsche 4.0 L Flat-6 | 162 | |
| 15 | LMGTE Pro | 92 | Porsche Team Manthey | Patrick Pilet Frédéric Makowiecki | Porsche 911 RSR | 162 | |
| 15 | LMGTE Pro | 92 | Porsche Team Manthey | Patrick Pilet Frédéric Makowiecki | Porsche 4.0 L Flat-6 | 162 | |
| 16 | LMGTE Pro | 71 |  AF Corse | Davide Rigon James Calado | Ferrari 458 Italia GT2 | 162 | |
| 16 | LMGTE Pro | 71 | AF Corse | Davide Rigon James Calado | Ferrari 4.5 L V8 | 162 | |
| 17 | LMGTE Pro | 99 | Aston Martin Racing V8 | Fernando Rees Alex MacDowall Richie Stanaway | Aston Martin V8 Vantage GTE | 161 | |
| 17 | LMGTE Pro | 99 | Aston Martin Racing V8 | Fernando Rees Alex MacDowall Richie Stanaway | Aston Martin 4.5 L V8 | 161 | |
| 18 | LMGTE Pro | 95 | Aston Martin Racing | Christoffer Nygaard Marco Sørensen | Aston Martin V8 Vantage GTE | 160 | |
| 18 | LMGTE Pro | 95 | Aston Martin Racing | Christoffer Nygaard Marco Sørensen | Aston Martin 4.5 L V8 | 160 | |
| 19 | LMGTE Pro | 97 | Aston Martin Racing | Darren Turner Jonathan Adam | Aston Martin V8 Vantage GTE | 160 | |
| 19 | LMGTE Pro | 97 | Aston Martin Racing | Darren Turner Jonathan Adam | Aston Martin 4.5 L V8 | 160 | |
| 20 | LMGTE Pro | 51 | AF Corse | Gianmaria Bruni Toni Vilander | Ferrari 458 Italia GT2 | 160 | |
| 20 | LMGTE Pro | 51 | AF Corse | Gianmaria Bruni Toni Vilander | Ferrari 4.5 L V8 | 160 | |
| 21 | LMGTE Am | 72 | SMP Racing | Viktor Shaitar Aleksey Basov Andrea Bertolini | Ferrari 458 Italia GT2 | 159 | |
| 21 | LMGTE Am | 72 | SMP Racing | Viktor Shaitar Aleksey Basov Andrea Bertolini | Ferrari 4.5 L V8 | 159 | |
| 22 | LMGTE Am | 88 | Abu Dhabi-Proton Racing | Christian Ried Earl Bamber Khalded Al Qubaisi | Porsche 911 RSR | 159 | |
| 22 | LMGTE Am | 88 | Abu Dhabi-Proton Racing | Christian Ried Earl Bamber Khalded Al Qubaisi | Porsche 4.0 L Flat-6 | 159 | |
| 23 | LMGTE Am | 83 | AF Corse | François Perrodo Emmanuel Collard Rui Águas | Ferrari 458 Italia GT2 | 158 | |
| 23 | LMGTE Am | 83 | AF Corse | François Perrodo Emmanuel Collard Rui Águas | Ferrari 4.5 L V8 | 158 | |
| 24 | LMGTE Am | 77 | Dempsey Racing-Proton | Patrick Dempsey Patrick Long Marco Seefried | Porsche 911 RSR | 158 | |
| 24 | LMGTE Am | 77 | Dempsey Racing-Proton | Patrick Dempsey Patrick Long Marco Seefried | Porsche 4.0 L Flat-6 | 158 | |
| 25 | LMGTE Am | 98 | Aston Martin Racing |  Paul Dalla Lana Pedro Lamy Mathias Lauda | Aston Martin V8 Vantage GTE | 158 | |
| 25 | LMGTE Am | 98 | Aston Martin Racing | Paul Dalla Lana Pedro Lamy Mathias Lauda | Aston Martin 4.5 L V8 | 158 | |
| 26 | LMGTE Am | 96 | Aston Martin Racing |  Benny Simonsen Stuart Hall Francesco Castellacci | Aston Martin V8 Vantage GTE | 158 | |
| 26 | LMGTE Am | 96 | Aston Martin Racing | Benny Simonsen Stuart Hall Francesco Castellacci | Aston Martin 4.5 L V8 | 158 | |
| 27 | LMGTE Am | 50 | Larbre Compétition | Gianluca Roda Paolo Ruberti Kristian Poulsen | Chevrolet Corvette C7.R | 157 | |
| 27 | LMGTE Am | 50 | Larbre Compétition | Gianluca Roda Paolo Ruberti Kristian Poulsen | Chevrolet 5.5 L V8 | 157 | |
| 28 | LMP1 | 13 | Rebellion Racing | Dominik Kraihamer Alexandre Imperatori Daniel Abt | Rebellion R-One | 147 | |
| 28 | LMP1 | 13 | Rebellion Racing | Dominik Kraihamer Alexandre Imperatori Daniel Abt | AER P60 2.4 L Turbo V6 | 147 | |
| 29 | LMP1 | 12 | Rebellion Racing | Nicolas Prost Nick Heidfeld Mathias Beche | Rebellion R-One | 147 | |
| 29 | LMP1 | 12 | Rebellion Racing | Nicolas Prost Nick Heidfeld Mathias Beche | AER P60 2.4 L Turbo V6 | 147 | |
| DNF | LMP1 | 2 | Toyota Racing | Alexander Wurz Stéphane Sarrazin Mike Conway | Toyota TS040 Hybrid | 89 | |
| DNF | LMP1 | 2 | Toyota Racing | Alexander Wurz Stéphane Sarrazin Mike Conway | Toyota 3.7 L V8 | 89 | |
| DNF | LMP2 | 31 | Extreme Speed Motorsports | Ed Brown Johannes van Overbeek Jon Fogarty | Ligier JS P2 | 54 | |
| DNF | LMP2 | 31 | Extreme Speed Motorsports | Ed Brown Johannes van Overbeek Jon Fogarty | Honda HR28TT 2.8 L Turbo V6 | 54 |