# 2021 Indianapolis 8 Hours

The 2021 Indianapolis 8 Hours was an endurance race held on 17 October 2021 at the Indianapolis Motor Speedway in Speedway, in Indiana, United States. The event was open to cars in GT classes, namely GT3 and GT4. It was the second running of the Indianapolis 8 Hour. It was also the second leg of the 2021 Intercontinental GT Challenge and the seventh and final race of the 2021 GT World Challenge America. The GT World Challenge America results were determined by the race results after three hours instead of the full eight hours.
The race was run on the SCCA Runoffs layout, not the INDYCAR Grand Prix layout as was done the previous year, as it was made necessary as a result of kerbing damage in the Turn 5-6 chicane during the Verizon 200 NASCAR-INDYCAR meeting. The Runoffs course utilised the old Formula One course with the newer Snake Pit section.

## Class structure

Cars competed in the following two GT classes.
* GT3 Cars
* GT4 Cars

## Entry List

| No. | Entrant | Car | Class | Driver 1 | Driver 2 | Driver 3 |
| Group GT3 (28 entries) |||||||
| 04 | CrowdStrike/ DXDT Racing | Mercedes-AMG GT3 Evo | PA | Colin Braun | Ben Keating | George Kurtz |
| 3 | K-Pax Racing | Lamborghini Huracán GT3 Evo | P | Mirko Bortolotti | Andrea Caldarelli | Jordan Pepper |
| 6 | K-Pax Racing | Lamborghini Huracán GT3 Evo | P | Corey Lewis | Marco Mapelli | Giovanni Venturini |
| 10 | TR3 Racing | Lamborghini Huracán GT3 Evo | PA | Giacomo Altoè | John Megrue | Bill Sweedler |
| 12 | Ian Lacy Racing with G3 Racing | Aston Martin Vantage AMR GT3 | PA | Frank Gannett | Ian Lacy | Drew Staveley |
| 16 | EBM Giga Racing | Porsche 911 GT3 R | PA | Nick Boulle | Adrian D'Silva | Jeffrey Kingsley |
| 19 | CrowdStrike/ DXDT Racing | Mercedes-AMG GT3 Evo | PA | Michael Cooper | Thomas Merrill | Erin Vogel |
| 20 | Wright Motorsports | Porsche 911 GT3 R | S | Jan Heylen | Fred Poordad | Max Root |
| 25 | Audi Sport Team Saintéloc | Audi R8 LMS Evo | P | Christopher Haase | Patric Niederhauser | Markus Winkelhock |
| 26 | Saintéloc Racing | Audi R8 LMS Evo | S | Nicolas Baert | Lucas Légeret | Aurélien Panis |
| 32 | Audi Sport Team WRT | Audi R8 LMS Evo | P | Christopher Mies | Dries Vanthoor | Charles Weerts |
| 33 | Winward Racing | Mercedes-AMG GT3 Evo | S | Marvin Dienst | Philip Ellis | Russell Ward |
| 34 | GMG Racing | Porsche 911 GT3 R | PA | Dennis Olsen | James Sofronas | Kyle Washington |
| 37 | Audi Sport Team WRT | Audi R8 LMS Evo | P | Mattia Drudi | Robin Frijns | Nico Müller |
| 51 | AF Corse - Francorchamps Motors | Ferrari 488 GT3 Evo 2020 | P | Côme Ledogar | Nicklas Nielsen | Alessandro Pier Guidi |
| 59 | Crucial Motorsports | McLaren 720S GT3 | P | Ben Barnicoat | Robert Bell | Paul Holton |
| 61 | AF Corse | Ferrari 488 GT3 Evo 2020 | Am | Conrad Grunewald | Mark Kvamme | Jean-Claude Saada |
| 63 | CrowdStrike/ DXDT Racing | Mercedes-AMG GT3 Evo | PA | David Askew | Ryan Dalziel | Scott Smithson |
| 70 | Inception Racing with Optimum Motorsport | McLaren 720S GT3 | PA | Brendan Iribe | Kevin Madsen | Ollie Millroy |
| 71 | AF Corse - Francorchamps Motors | Ferrari 488 GT3 Evo 2020 | P | Antonio Fuoco | Callum Ilott | Davide Rigon |
| 75 | SunEnergy1 Racing | Mercedes-AMG GT3 Evo | PA | Mikaël Grenier | Kenny Habul | Martin Konrad |
| 77 | Richard Mille - Compass Racing | Acura NSX GT3 Evo | S | Mario Farnbacher | Ashton Harrison | Matt McMurry |
| 88 | Zelus Motorsports | Lamborghini Huracán GT3 Evo | PA | Jason Harward | Madison Snow | TBA |
| 89 | Mercedes-AMG Team AKKA ASP | Mercedes-AMG GT3 Evo | P | Timur Boguslavskiy | Daniel Juncadella | Raffaele Marciello |
| 91 | Rearden Racing | Lamborghini Huracán GT3 Evo | PA | Jeff Burton | Vesko Kozarov | TBA |
| 93 | Racers Edge Motorsports | Acura NSX GT3 Evo | S | Jacob Abel | Dakota Dickerson | Taylor Hagler |
| 96 | Turner Motorsport | BMW M6 GT3 | P | Connor De Phillippi | Michael Dinan | Robby Foley |
| 99 | Mercedes-AMG Team Craft-Bamboo Racing | Mercedes-AMG GT3 Evo | P | Maro Engel | Jules Gounon | Luca Stolz |
| Group GT4 (13 entries) |||||||
| 09 | Automatic Racing | Aston Martin Vantage AMR GT4 | Am | Jonathan Branam | Paul Kiebler | Mikel Miller |
| 2 | GMG Racing | Aston Martin Vantage AMR GT4 | PA | Jason Bell | Andrew Davis | Trent Hindman |
| 7 | Nolasport with OGH | Porsche 718 Cayman GT4 Clubsport | Am | Sean Gibbons | Pippa Mann | Sam Owens |
| 8 | GMG Racing | Audi R8 LMS GT4 Evo | PA | Andy Lee | Joel Miller | Elias Sabo |
| 36 | Bimmerworld Racing | BMW M4 GT4 | S | Bill Auberlen | James Clay | Chandler Hull |
| 47 | Nolasport | Porsche 718 Cayman GT4 Clubsport | PA | Jason Hart | Colin Noble | Matt Travis |
| 54 | Black Swan Racing | Porsche 718 Cayman GT4 Clubsport | PA | Jeroen Bleekemolen | Sebastiaan Bleekemolen | Tim Pappas |
| 66 | TRG - The Racers Group | Porsche 718 Cayman GT4 Clubsport | PA | Derek DeBoer | Andy Lally | Spencer Pumpelly |
| 68 | TGR Smooge Racing | Toyota GR Supra GT4 | Am | Kevin Conway | John Geesbreght | Jack Hawksworth |
| 82 | Bimmerworld Racing | BMW M4 GT4 | S | Nick Galante | Devin Jones | James Walker |
| 98 | Random Vandals Racing | BMW M4 GT4 | PA | Al Carter | Conor Daly | Paul Sparta |
| 111 | Classic BMW | BMW M4 GT4 | S | John Capestro-DuBets | Alex Filsinger | Dominic Starkweather |
| 119 | Stephen Cameron Racing | BMW M4 GT4 | PA | Guy Cosmo | Tom Dyer | Sean Quinlan |
| Icon | Class |
| P | Pro Cup |
| S | Silver Cup |
| PA | Pro/Am Cup |
| Am | Am Cup |

## Qualifying
### Qualifying results

Pole positions in each class are denoted in bold.
Final qualifying classification :
| Pos. | Class | No. | Team | Qualifying | Pole Shootout | Grid |
| 1 | GT3 Pro | 51 | AF Corse - Francorchamps Motors | 1:34.916 | 1:33.456 | 1 |
| 2 | GT3 Pro | 25 | Audi Sport Team Saintéloc | 1:34.728 | 1:33.514 | 2 |
| 3 | GT3 Pro | 99 | Mercedes-AMG Team Craft-Bamboo Racing | 1:34.444 | 1:33.515 | 3 |
| 4 | GT3 Pro | 71 | AF Corse - Francorchamps Motors | 1:34.706 | 1:33.556 | 4 |
| 5 | GT3 Pro | 32 | Audi Sport Team WRT | 1:34.826 | 1:33.817 | 5 |
| 6 | GT3 Pro | 37 | Audi Sport Team WRT | 1:34.562 | 1:33.845 | 6 |
| 7 | GT3 Silver | 33 | Winward Racing | 1:35.168 | 1:34.013 | 7 |
| 8 | GT3 Pro | 89 | Mercedes-AMG Team AKKA ASP | 1:34.942 | 1:34.130 | 8 |
| 9 | GT3 Silver | 20 | Wright Motorsports | 1:35.885 | 1:34.197 | 9 |
| 10 | GT3 Pro/Am | 75 | SunEnergy1 Racing | 1:35.791 | 1:34.232 | 10 |
| 11 | GT3 Pro | 3 | K-Pax Racing | 1:34.641 | 1:34.376 | 11 |
| 12 | GT3 Silver | 26 | Saintéloc Racing | 1:35.503 | 1:34.418 | 12 |
| 13 | GT3 Silver | 93 | Racers Edge Motorsports | 1:35.775 | 1:34.456 | 13 |
| 14 | GT3 Pro | 6 | K-Pax Racing | 1:35.664 | 1:34.903 | 14 |
| 15 | GT3 Pro | 59 | Crucial Motorsports | 1:34.730 | No Time | 15 |
| 16 | GT3 Silver | 77 | Richard Mille - Compass Racing | 1:36.045 | | 16 |
| 17 | GT3 Pro/Am | 70 | Inception Racing with Optimum Motorsport | 1:36.152 | | 17 |
| 18 | GT3 Pro/Am | 19 | CrowdStrike/ DXDT Racing | 1:36.395 | | 18 |
| 19 | GT3 Pro/Am | 34 | GMG Racing | 1:36.523 | | 19 |
| 20 | GT3 Pro/Am | 88 | Zelus Motorsports | 1:36.764 | | 20 |
| 21 | GT3 Pro/Am | 04 | CrowdStrike/ DXDT Racing | 1:37.044 | | 21 |
| 22 | GT3 Pro/Am | 63 | CrowdStrike/ DXDT Racing | 1:37.199 | | 22 |
| 23 | GT3 Pro/Am | 10 | TR3 Racing | 1:37.218 | | 23 |
| 24 | GT3 Pro/Am | 91 | Rearden Racing | 1:37.429 | | 24 |
| 25 | GT3 Am | 61 | AF Corse | 1:37.537 | | 25 |
| 26 | GT3 Pro/Am | 16 | EBM Giga Racing | 1:41.637 | | 26 |
| 27 | GT4 Am | 68 | TGR Smooge Racing | 1:43.069 | | 39 |
| 28 | GT4 Pro/Am | 2 | GMG Racing | 1:43.516 | | 27 |
| 29 | GT4 Silver | 36 | Bimmerworld Racing | 1:43.748 | | 28 |
| 30 | GT4 Pro/Am | 119 | Stephen Cameron Racing | 1:44.093 | | 29 |
| 31 | GT4 Silver | 82 | Bimmerworld Racing | 1:44.240 | | 30 |
| 32 | GT4 Pro/Am | 47 | Nolasport | 1:44.252 | | 31 |
| 33 | GT4 Pro/Am | 8 | GMG Racing | 1:44.414 | | 32 |
| 34 | GT4 Pro/Am | 98 | Random Vandals Racing | 1:44.649 | | 33 |
| 35 | GT4 Silver | 111 | Classic BMW | 1:44.651 | | 34 |
| 36 | GT4 Pro/Am | 66 | TRG - The Racers Group | 1:44.740 | | 35 |
| 37 | GT4 Pro/Am | 54 | Black Swan Racing | 1:44.859 | | 36 |
| 38 | GT4 Am | 7 | Nolasport with OGH | 1:46.189 | | 37 |
| 39 | GT4 Am | 09 | Automatic Racing | 1:44.608 | | 38 |
| 40 | GT3 Pro | 96 | Turner Motorsport | No Time | | WD |
| 41 | GT3 Pro/Am | 12 | Ian Lacy Racing with G3 Racing | No Time | | WD |
* ↑ The No. 68 Smooge Racing Toyota GR Supra GT4 has been stripped of its GT4 class pole following a overboost issue in Qualifying.
* ↑ The No. 96 Turner Motorsport BMW M6 GT3 was withdrawn following Michael Dinan's sickness in pre-qualifying.
* ↑ The No. 12 Ian Lacy Racing with G3 Racing Aston Martin Vantage AMR GT3 was withdrawn following Frank Gannett's crash in Friday's Bronze Test Session.

## Race Result

Class winners denoted with bold and ‡.
| Pos. | Class | No. | Team / Entrant | Drivers | Car | Laps | Time/Retired |
| 1 | GT3 Pro | 25 | Audi Sport Team Saintéloc | Christopher Haase Patric Niederhauser Markus Winkelhock | Audi R8 LMS Evo | 265 | 8:00:59.768‡ |
| 2 | GT3 Pro | 89 | Mercedes-AMG Team AKKA ASP | Timur Boguslavskiy Daniel Juncadella Raffaele Marciello | Mercedes-AMG GT3 Evo | 265 | +11.958 |
| 3 | GT3 Pro | 3 | K-Pax Racing | Mirko Bortolotti Andrea Caldarelli Jordan Pepper | Lamborghini Huracán GT3 Evo | 265 | +22.853 |
| 4 | GT3 Pro | 51 | AF Corse - Francorchamps Motors | Côme Ledogar Nicklas Nielsen Alessandro Pier Guidi | Ferrari 488 GT3 Evo 2020 | 265 | +49.508 |
| 5 | GT3 Pro | 32 | Audi Sport Team WRT | Christopher Mies Dries Vanthoor Charles Weerts | Audi R8 LMS Evo | 265 | +51.655 |
| 6 | GT3 Silver | 77 | Richard Mille - Compass Racing | Mario Farnbacher Ashton Harrison Matt McMurry | Acura NSX GT3 Evo | 265 | +59.815‡ |
| 7 | GT3 Silver | 26 | Saintéloc Racing | Nicolas Baert Lucas Légeret Aurélien Panis | Audi R8 LMS Evo | 265 | +1:23.937 |
| 8 | GT3 Silver | 93 | Racers Edge Motorsports | Jacob Abel Dakota Dickerson Taylor Hagler | Acura NSX GT3 Evo | 264 | +1 Lap |
| 9 | GT3 Pro | 6 | K-Pax Racing | Corey Lewis Marco Mapelli Giovanni Venturini | Lamborghini Huracán GT3 Evo | 264 | +1 Lap |
| 10 | GT3 Pro-Am | 75 | SunEnergy1 Racing | Mikaël Grenier Kenny Habul Martin Konrad | Mercedes-AMG GT3 Evo | 261 | +4 Laps‡ |
| 11 | GT3 Pro-Am | 34 | GMG Racing | Dennis Olsen James Sofronas Kyle Washington | Porsche 911 GT3 R | 261 | +4 Laps |
| 12 | GT3 Pro | 37 | Audi Sport Team WRT | Mattia Drudi Robin Frijns Nico Müller | Audi R8 LMS Evo | 261 | +4 Laps |
| 13 | GT3 Pro-Am | 10 | TR3 Racing | Giacomo Altoè John Megrue Bill Sweedler | Lamborghini Huracán GT3 Evo | 259 | +6 Laps |
| 14 | GT3 Pro-Am | 63 | CrowdStrike/DXDT Racing | David Askew Ryan Dalziel Scott Smithson | Mercedes-AMG GT3 Evo | 256 | +9 Laps |
| 15 | GT3 Pro-Am | 70 | Inception Racing with Optimum Motorsport | Brendan Iribe Kevin Madsen Ollie Millroy | McLaren 720S GT3 | 255 | +10 Laps |
| 16 | GT3 Am | 61 | AF Corse | Conrad Grunewald Mark Kvamme Jean-Claude Saada | Ferrari 488 GT3 Evo 2020 | 254 | +11 Laps‡ |
| 17 | GT4 Silver | 36 | Bimmerworld Racing | Bill Auberlen James Clay Chandler Hull | BMW M4 GT4 | 247 | +18 Laps‡ |
| 18 | GT4 Pro-Am | 119 | Stephen Cameron Racing | Guy Cosmo Tom Dyer Sean Quinlan | BMW M4 GT4 | 247 | +18 Laps‡ |
| 19 | GT4 Pro-Am | 54 | Black Swan Racing | Jeroen Bleekemolen Sebastiaan Bleekemolen Tim Pappas | Porsche 718 Cayman GT4 Clubsport | 247 | +18 Laps |
| 20 | GT4 Silver | 82 | Bimmerworld Racing | Nick Galante Devin Jones James Walker | BMW M4 GT4 | 246 | +19 Laps |
| 21 | GT4 Pro-Am | 66 | TRG - The Racer's Group | Derek DeBoer Andy Lally Spencer Pumpelly | Porsche 718 Cayman GT4 Clubsport | 246 | +19 Laps |
| 22 | GT4 Pro-Am | 8 | GMG Racing | Andy Lee Joel Miller Elias Sabo | Audi R8 LMS GT4 Evo | 244 | +21 Laps |
| 23 | GT4 Silver | 111 | Classic BMW | John Capestro-DuBets Alex Filsinger Dominic Starkweather | BMW M4 GT4 | 223 | +42 Laps |
| 24 | GT3 Pro-Am | 04 | CrowdStrike/DXDT Racing | Colin Braun Ben Keating George Kurtz | Mercedes-AMG GT3 Evo | 212 | +53 Laps |
| 25 | GT4 Am | 09 | Automatic Racing | Jonathan Branam Paul Kiebler Mikel Miller | Aston Martin Vantage AMR GT4 | 212 | +53 Laps‡ |
| 26 | GT4 Am | 7 | Nolasport with OGH | Sean Gibbons Pippa Mann Sam Owens | Porsche 718 Cayman GT4 Clubsport | 200 | +65 Laps |
| 27 | GT4 Pro-Am | 47 | Nolasport | Jason Hart Colin Noble Matt Travis | Porsche 718 Cayman GT4 Clubsport | 196 | +69 Laps |
| NC | GT3 Pro | 99 | Mercedes-AMG Team Craft-Bamboo Racing | Maro Engel Jules Gounon Luca Stolz | Mercedes-AMG GT3 Evo | 243 | Retired |
| NC | GT3 Pro | 59 | Crucial Motorsports | Ben Barnicoat Robert Bell Paul Holton | McLaren 720S GT3 | 242 | Retired |
| NC | GT3 Pro | 71 | AF Corse - Francorchamps Motors | Antonio Fuoco Callum Ilott Davide Rigon | Ferrari 488 GT3 Evo 2020 | 237 | Retired |
| NC | GT4 Pro-Am | 98 | Random Vandals Racing | Al Carter Conor Daly Paul Sparta | BMW M4 GT4 | 169 | Retired |
| NC | GT3 Pro-Am | 16 | EBM Giga Racing | Nick Boulle Adrian D'Silva Jeffery Kingsley | Porsche 911 GT3 R | 144 | Retired |
| NC | GT3 Silver | 20 | Wright Motorsports | Jan Heylen Fred Poordad Max Root | Porsche 911 GT3 R | 144 | Retired |
| NC | GT4 Pro-Am | 2 | GMG Racing | Jason Bell Andrew Davis Trent Hindman | Aston Martin Vantage AMR GT4 | 134 | Retired |
| NC | GT4 Am | 68 | TGR Smooge Racing | Kevin Conway John Geesbreght Jack Hawksworth | Toyota GR Supra GT4 | 120 | Retired |
| NC | GT3 Pro-Am | 91 | Rearden Racing | Jeff Burton Vesko Kozarov | Lamborghini Huracán GT3 Evo | 103 | Retired |
| NC | GT3 Pro-Am | 19 | CrowdStrike/DXDT Racing | Michael Cooper Thomas Merrill Erin Vogel | Mercedes-AMG GT3 Evo | 62 | Retired |
| NC | GT3 Silver | 33 | Winward Racing | Marvin Dienst Philip Ellis Russell Ward | Mercedes-AMG GT3 Evo | 62 | Retired |
| NC | GT3 Pro-Am | 88 | Zelus Motorsports | Jason Harward Madison Snow | Lamborghini Huracán GT3 Evo | 100 | Retired |
| Results ||||||||